How Many Primate Taxa Have You Seen?

While I've seen these sorts of threads for many other animal taxa, I'm surprised I haven't seen a thread for discussing what primates people have seen. Here is my list of primate taxa seen, and I'd be curious to see your lists too.

Currently, there are sixteen recognized families of primates. Out of these sixteen, I have seen fourteen of them:
  • Lorisidae (lorises, pottos, and angwantibos)
  • Galagidae (galagos and bushbabies)
  • Daubentoniidae (aye-aye)
  • Cheirogaleidae (mouse lemurs)
  • Lemuridae ("true lemurs"- including the ring-tailed, ruffed, bamboo, and brown lemurs)
  • Indriidae (indris and sifakas)
  • Atelidae (spider and howler monkeys)
  • Pitheciidae (sakis, titis, and uakaris)
  • Callitrichidae (marmosets and tamarins)
  • Cebidae (capuchins and squirrel monkeys)
  • Aotidae (night monkeys)
  • Cercopithecidae (all Old World monkeys)
  • Hylobatidae (gibbons)
  • Hominidae (great apes)
The two I have not seen are Tarsiidae, the tarsiers, and Lepilemuridae, the sportive lemurs.

Within these sixteen families, there are approximately 81 genera, depending on what taxonomy you ascribe to. Genera I have seen are bolded below, with the number of species seen in parentheses. They are sorted by family, with families underlined. All combined, I have seen 43 out of 81 genera, and a total of 64 species. 63 of these species were seen in captivity, with the 64th species being humans:
Tarsiidae
Carlito
Cephalopachus
Tarsius

Lorisidae
Loris
Nycticebus
Xanthonycticebus (one species- pygmy slow loris)
Arctocebus
Perodicticus (one species- potto)

Galagidae

Euticos
Galago (one species- Moholi bushbaby)
Galagoides
Otolemur (one species- Northern greater galago)
Paragalago
Sciurocheirus

Cheirogaleidae
Allocebus
Cheirogaleus
Microcebus (one species- gray mouse lemur)
Mirza
Phaner

Lepilemuridae
Lepilemur

Lemuridae
Eulemur (four species)

Hapalemur
Lemur (one species- ring-tailed lemur)
Prolemur
Varecia (two species)

Indriidae

Avahi
Indri
Propithecus (one species- Coquerel's sifaka)

Daubentoniidae
Daubentonia (one species- aye-aye)

Atelidae
Alouatta (one species- black-and-gold howler monkey)
Ateles (two species)

Brachyteles
Lagothrix

Pitheciidae
Callicebus
Cheracebus
Plecturocebus (two species)
Cacajao
Chiropotes (one species- red-backed bearded saki)
Pithecia (one species- pale-faced saki)

Cebidae
Cebus (one species- Colombian white-faced capuchin)
Sapajus (one species- brown capuchin)
Saimiri (two species)

Callitrichidae
Callimico (one species- callimico)
Callithrix (two species)
Cebuella (one species- western pygmy marmoset)

Leontocebus
Leontopithecus (two species)
Mico
Saguinus (three species)

Aotidae
Aotus (one species)

Cercopithecidae
Allenopithecus (one species- Allen's swamp monkey)

Allochrocebus
Cercocebus (two species)
Cercopithecus (three species)
Chlorocebus (one species- vervet sensu lato)
Erythrocebus (one species- patas monkey)
Lophocebus (one species- black-crested mangabey)
Macaca (two species)
Mandrillus (one species- mandrill)

Miopithecus
Papio (two species)
Rungwecebus
Theropithecus (one species- gelada)
Colobus (two species)

Nasalis
Piliocolobus
Presbystis
Procolobus
Pygathrix
Rhinopithecus
Semnopithecus
Simias
Trachypithecus (three species)

Hylobatidae

Hoolock
Hylobates (two species)
Nomascus (one species- Northern white-cheeked gibbon)
Symphalangus (one species- siamang)

Hominidae
Pongo (two species)
Pan (one species- chimpanzee)
Gorilla (one species- Western lowland gorilla)
Homo (one species- humans)
Since others have since given their full species list, I figured I'll do the same, instead of just genera and families.
Lorisidae
1. Potto- Perodicticus potto (Franklin Park Zoo)
2. Pygmy Slow Loris- Xanthonycticebus pygmaeus (Cleveland Metroparks Zoo)

Galagidae
3
. Moholi Bushbaby- Galago moholi (five zoos total)
4. Northern Greater Galago- Otolemur garnetti (Animal Adventures and Cleveland Metroparks Zoo)

Daubentoniidae
5. Aye-Aye- Daubentonia madagascariensis (Philadelphia Zoo and Cleveland Metroparks Zoo)

Cheirogaleidae
6. Grey Mouse Lemur- Microcebus murinus (Bronx Zoo)

Lemuridae
7. Collared Brown Lemur- Eulemur collaris (Disney's Animal Kingdom and Central Park Zoo)
8. Crowned Lemur- Eulemur coronatus (Cleveland Metroparks Zoo)
9. Blue-Eyed Black Lemur- Eulemur flavifrons (Philadelphia Zoo)
10. Mongoose Lemur- Eulemur mongoz (Cleveland Metroparks Zoo
11. Ring-tailed Lemur- Lemur catta (eleven zoos total)
12. Red-ruffed Lemur- Varecia rubra (six zoos total)
13. Black-and-White Ruffed Lemur- Varecia variegata (six zoos total)

Indriidae
14. Coquerel's Sifaka- Propithecus coquereli (Bronx Zoo)

Atelidae
15. Black-and-Gold Howler Monkey- Alouatta caraya (Roger Williams Park Zoo, Buffalo Zoo, and Cleveland Metroparks Zoo)
16. Colombian Spider Monkey- Ateles fusciceps rufiventris (Philadelphia Zoo and Cleveland Metroparks Zoo)
17. Central American Spider Monkey- Ateles geoffroyi (five zoos total- including subspecies vellerosus at Utica Zoo)

Pitheciidae
18. Red-Backed Bearded Saki- Chiropotes chiropotes (Wild Animal Park)
19. White-Faced Saki- Pithecia pithecia (six zoos total)
20. Coppery Titi- Plecturocebus cupreus (Wild Animal Park)
21. Bolivian Grey Titi- Plecturocebus donacophilus (seven zoos total)

Cebidae
22. Colombian White-Faced Capuchin- Cebus capucinus (Southwick's Zoo)
23. Black-Capped Squirrel Monkey- Saimiri boliviensis (Buffalo Zoo and Animal Adventures)
24. Common Squirrel Monkey- Saimiri sciureus (four zoos total)
25. Brown Capuchin- Sapajus apella (Buffalo Zoo and Southwick's Zoo)

Aotidae
26. Nancy Ma's Night Monkey- Aotus nancymae (Buttonwood Park Zoo)

Callitrichidae
27. Callimico- Callimico goeldii (Buttonwood Park, Cleveland Metroparks, and Bergen County Zoos)
28. White-Headed Marmoset- Callithrix geoffroyi (Philadelphia, Prospect Park, and Capron Park Zoos)
29. Common Marmoset- Callithrix jacchus (Southwick's Zoo)
30. Western Pygmy Marmoset- Cebuella pygmaea (Buttonwood Park and Bronx Zoos)
31. Golden-Headed Lion Tamarin- Leontopithecus chrysomelas (Buttonwood Park Zoo)
32. Golden Lion Tamarin- Leontopithecus rosalia (ten zoos total)
33. Pied Tamarin- Saguinus bicolor (Philadelphia, Cleveland Metroparks, and Toledo Zoos)
34. Bearded Emperor Tamarin- Saguinus imperator subgrisescens (Buttonwood Park, Staten Island, and Toledo Zoos)
35. Cottontop Tamarin- Saguinus oedipus (ten zoos total)

Cercopithecidae
36. Allen's Swamp Monkey- Allenopithecus nigroviridis (Cleveland Metroparks Zoo and Detroit Zoo)
37. Golden-Bellied Mangabey- Cercocebus chrysogaster (Cleveland Metroparks Zoo)
38. Red-Capped Mangabey- Cercocebus torquatus (Philadelphia Zoo)
39. Schmidt's Red-tailed Monkey- Cercopithecus ascanius schmidti (Southwick's Zoo and Toledo Zoo)
40. DeBrazza's Monkey- Cercopithecus neglectus (Capron Park, Southwick's, and Franklin Park Zoos)
41. Wolf's Guenon- Cercopithecus wolfi (Southwick's Zoo and Bronx Zoo)
42. Vervet sensu lato- Chlorocebus sp. (Southwick's Zoo and Animal Adventures)
43. Angolan Colobus- Colobus angolensis palliatus (Disney's Animal Kingdom and Bronx Zoo)
44. Black-and-White Colobus- Colobus guereza kikuyuensis (four zoos total)
45. Patas Monkey- Erythrocebus patas (Southwick's Zoo and Rosamond Gifford Zoo)
46. Black-Crested Mangabey- Lophocebus atterribus (Southwick's Zoo)
47. Japanese Macaque- Macaca fuscata fuscata (Buffalo Zoo, Central Park Zoo, and Detroit Zoo)
48. Lion-Tailed Macaque- Macaca silensis (Disney's Animal Kingdom)
49. Mandrill- Mandrillus sphinx (Southwick's Zoo and Bronx Zoo)
50. Olive Baboon- Papio anubis (Wild Animal Park and Toronto Zoo)
51. Hamadryas Baboon- Papio hamadryas (Prospect Park Zoo)
52. Gelada- Theropithecus gelada (Bronx Zoo)
53. East Javan Langur- Trachcypithecus auratus (Bronx Zoo)
54. Silvered Leaf Langur- Trachypithecus cristatus (Bronx Zoo)
55. Francois' Langur- Trachypithecus francoisi (Philadelphia Zoo and Cleveland Metroparks Zoo)

Hylobatidae
56. White-Handed Gibbon- Hylobates lar (five zoos total)
57. Southern Grey Gibbon- Hylobates muelleri (Cleveland Metroparks Zoo)
58. Northern White-Cheeked Gibbon- Nomascus leucogenys (five zoos total)
59. Siamang- Symphalangus syndactylus (four zoos total)

Hominidae
60. Western Lowland Gorilla- Gorilla gorilla gorilla (nine zoos total)
61. Chimpanzee- Pan troglodytes (Southwick's Zoo and Detroit Zoo)
62. Sumatran Orangutan- Pongo abelii (Philadelphia Zoo and Toronto Zoo)
63. Bornean Orangutan- Pongo pygmaeus (Cleveland Metroparks Zoo and Toledo Zoo)
64. Human- Homo sapiens (on a daily basis :))
 
I have seen 13/16 families, with Lepilemuridae, Cheirogaleidae and Indriidae missing. Sifakas and dwarf lemurs ain’t exactly common in Asia!

Lemuridae (5 species)
1. Black and white ruffed lemur
2. Ring-tailed lemur
3. Brown lemur
4. Black lemur
5. Gray bamboo lemur

Daubentoniidae (1 species)
6. Aye aye

Lorisidae (3 species)
7. Pygmy slow loris
8. Potto
9. Sunda slow loris

Galagidae (1 species)
10. Senegal bushbaby

Tarsiidae (1 species)
11. Spectral tarsier

Callitrichidae (8 species)
12. Black-tufted Marmoset
13. Common marmoset
14. Pygmy marmoset
15. Cottontop tamarin
16. Golden-head lion tamarin
17. Golden lion tamarin
18. Red-handed tamarin
19. Emperor tamarin

Cebidae (4 species)
20. Tufted capuchin
21. White-faced Capuchin
22. Common Squirrel monkey
23. Black-capped Squirrel Monkey

Aotidae (1 species)
24. Three-striped night monkey (or whatever Japan have)

Pitheciidae (3 species)
25. Bolivian gray titi
26. Red-backed Bearded Saki
27. White-faced saki

Atelidae (4 species)
28. Black howler monkey
29. Geoffroy's spider monkey
30. Red-faced spider monkey
31. Common woolly monkey

Cercopithecidae (35 species)
32. De brazza's monkey
33. Syke's monkey
34. Golden-bellied mangabey
35. Lesser Spot-nosed Monkey
36. Red-tailed Guenon
37. Moustached guenon
38. Diana monkey
39. Grivet (or whatever)
40. Black and white colobus
41. Angolan colobus
42. Patas monkey
43. Black crested mangabey
44. Japanese macaque
45. Lion-tailed macaque
46. Rhesus macaque
47. Tibetan macaque
48. Formosan macaque
49. Bonnet macaque
50. Celebes crested macaque
51. Long tailed macaque
52. Toque macaque
53. Barbary macaque
54. Southern Pig-tailed Macaque
55. Mandrill
56. Drill
57. Angolan talapoin
58. Proboscis monkey
59. Hamadrays baboon
60. Olive baboon
61. Guinea baboon
62. Red-shanked Douc Langur
63. Golden snub-nosed monkey
64. François' langur
65. Silvered langur
66. Selangor leaf langur

Hylobatidae (6 species at least)
67. Lar gibbon
68. Agile gibbon
69. Northern white-cheek gibbon
70. Muller’s gibbon
71. Pileated gibbon
72. Siamang
[There’s probably one or 2 more species I’ve seen? But not entirely sure.]

Hominidae (4 species, unless you want to count Homo Sapiens then 5)
73. Chimpanzee
74. Sumatran Orangutan
75. Bornean orangutan
76. Western gorilla

So in total 76 species (plus human), but I definitely missed some and there are some quite common ones I haven’t seen yet.
 
Lorisidae
Sunda Slow Loris

Galagidae
Senegal Bushbaby

Lemuridae
Ring-tailed Lemur
Common Brown Lemur
Black-and-white Ruffed Lemur
Red Ruffed Lemur
Lac Aloatra Gentle Lemur

Atelidae
Black Howler
Guyanan Red Howler
Black-headed Spider Monkey
Geoffroy's Spider Monkey

Pitheciidae
Guianan Bearded Saki
White-faced Saki

Callitrichidae
Cotton-top Tamarin
White-lipped Tamarin
Emperor Tamarin
Golden Lion Tamarin
Golden-headed Lion Tamarin
Silvery Marmoset
Western Pygmy Marmoset
Black-tufted Marmoset

Cebidae
Tufted Capuchin
Black-capped Squirrel Monkey
Common Squirrel Monkey

Aotidae
Grey-headed Night Monkey

Cercopithecidae
Patas Monkey
Vervet Monkey
De Brazza's Monkey
Celebes Crested Macaque
Crab-eating Macaque
Japanese Macaque
Lion-tailed Macaque
Hamadryas Baboon
Mandrill
Red-capped Mangabey
Eastern Black-and-white Colobus
Francois' Langur
Red-shanked Douc
Proboscis Monkey

Hylobatidae
Lar Gibbon
Siamang
Buff-cheeked Gibbon
Northern White-cheeked Gibbon

Hominidae
Bornean Orangutan
Sumatran Orangutan
Western Lowland Gorilla
Chimpanzee
Human
 
Lorisidae
1. Grey slender loris, Loris lydekkerianus
2. Pygmy slow loris, Xanthonycticebus pygmaeus
3. Bengal slow loris, Nycticebus bengalensis
4. Sunda slow loris, Nycticebus coucang
5. Potto, Perodictus potto

Galagidae
6. Moholi bushbaby, Galago moholi
7. Senegal bushbaby, Galago senegalensis
8. Prince Demidoff's bushbaby, Galago demidovii

Tarsiidae
9. Spectral tarsier, Tarsius tarsier

Daubentoniidae
10. Aye aye, Daubentonia madagascariensis

Cheirogaleidae
11. Grey mouse lemur, Microcebus murinus
12. Goodman's mouse lemur, Microcebus lehilahytsara

Lemuridae
13. White fronted lemur, Eulemur albifrons
14. White collared brown lemur, Eulemur cinereiceps
15. Collared lemur, Eulemur collaris
16. Crowned lemur, Eulemur coronatus
17. Blue eyed black lemur, Eulemur flavifrons
18. Black lemur, Eulemur macaco
19. Mongoose lemur, Eulemur mongoz
20. Red bellied lemur, Eulemur rubriventer
21. Alaotran bamboo lemur, Hapalemur aloatrensis
22. Northern bamboo lemur, Hapalemur occidentalis
23. Ring tailed lemur, Lemur catta
24. Greater bamboo lemur, Prolemur simus
25. Red ruffed lemur, Varecia rubra
26. Black and white ruffed lemur, Varecia variegata

Indriidae
27. Coquerel's sifaka, Propithecus coquereli
28. Crowned sifaka, Propithecus coronatus

Atelidae
29. Black and gold howler monkey, Alouatta caraya
30. Venezuelan red howler, Alouatta seniculus
31. Colombian black spider monkey, Ateles fusciceps
32. Geoffroy's spider monkey, Ateles geoffroyi
33. Red faced black spider monkey, Ateles paniscus

Pitheciidae
34. Guianan bearded saki, Chiropotes sagulatus
35. White faced saki, Pithecia pithecia
36. Red titi, Plecturocebus cupreus

Cebidae
37. Guianan weeper capuchin, Cebus olivaceus
38. Grey woolly monkey, Lagothrix lagotricha
39. Bolivian squirrel monkey, Saimiri boliviensis
40. Common squirrel monkey, Saimiri sciureus
41. Black capped capuchin, Sapajus apella
42. Yellow breasted capuchin, Sapajus xanthosternos

Aotidae
43. Azara's night monkey, Aotus azarae
44. Grey handed night monkey, Aotus lemurinus
45. Three striped night monkey, Aotus trivirgatus

Callitrichidae
46. Goeldi's monkey, Callimico goeldii
47. Geoffroy's marmoset, Callithrix geoffroyi
48. Common marmoset, Callitrhix jacchus
49. Pygmy marmoset, Cebuella pygmaea
50. Graell's tamarin, Leontocebus nigricollis
51. Weddell's saddleback tamarin, Leontocebus weddelli
52. Golden headed lion tamarin, Leontopithecus chrysomelas
53. Golden lion tamarin, Leontopithecus rosalia
54. Silvery marmoset, Mico argentatus
55. Pied tamarin, Saguinus bicolor
56. Emperor tamarin, Saguinus imperator
57. White lipped tamarin, Saguinus labiatus
58. Midas tamarin, Saguinus midas
59. Cottontop tamarin, Saguinus oedipus

Cercopithecidae
60. L'Hoest's guenon, Allochlorocebus lhoesti
61. Red tailed moustached monkey, Cercopithecus cephus
62. Diana monkey, Cercopithecus diana
63. Hamlyn's monkey, Cercopithecus hamlyni
64. De Brazza's monkey, Cercopithecus neglectus
65. Roloway guenon, Cercopithecus roloway
66. Grivet, Chlorocebus aethiops
67. Vervet monkey, Chlorocebus pygerythrus
68. Patas monkey, Erythrocebus patas
69. White naped mangabey, Cercocebus lunulatus
70. Cherry crowned mangabey, Cercocebus torquatus
71. Grey cheeked mangabey, Lophocebus albigena
72. Black crested mangabey, Lophocebus aterrimus
73. Crab eating macaque, Macaca fascicularis
74. Japanese macaque, Macaca fuscata
75. Northern pig tailed macaque, Macaca leonina
76. Rhesus macaque, Macaca mulatta
77. Sunda pig tailed macaque, Macaca nemestrina
78. Crested black macaque, Macaca nigra
79. Lion tailed macaque, Macaca silenus
80. Toque macaque, Macaca sinica
81. Barbary macaque, Macaca sylvanus
82. Tonkean macaque, Macaca tonkeana
83. Drill, Mandrillus leucophaeus
84. Mandrill, Mandrillus sphinx
85. Olive baboon, Papio anubis
86. Hamadryas baboon, Papio hamadryas
87. Western baboon, Papio papio
88. Gelada, Theropithecus gelada
89. Kikuyu guereza, Colobus guereza
90. King colobus, Colobus polykomos
91. Hanuman grey langur, Semnopithecus entellus
92. Javan lutung, Trachypithecus auratus

Hylobatidae
93. Lar gibbon, Hylobates lar
94. Grey gibbon, Hylobates muelleri
95. Pileated gibbon, Hylobates pileatus
96. Yellow cheeked gibbon, Nomascus gabriellae
97. Northern white cheeked gibbon, Nomascus leucogenys
98. Siamang, Symphalangus syndactylus

Hominidae
99. Western gorilla, Gorilla gorilla
100. Human, Homo sapiens
101. Bonobo, Pan paniscus
102. Chimpanzee, Pan troglodytes
103. Sumatran orangutan, Pongo abelii
104. Bornean orangutan, Pongo pygmaeus

Feel as if I'm missing a few but should be around that. With a bit of luck I'll add on another at Hamerton in a few weeks' time.
 
Lemuriidae
Ring-tailed Lemur
Black-and-white Ruffed Lemur

Lorisiidae
Sunda Slow Loris

Callitrichidae
Cotton-top Tamarin
Emperor Tamarin
Common Tamarin
Western Pygmy Marmoset

Cebiidae
Bolivian Squirrel Monkey
Tufted Capuchin

Cercopithecidae
Japanese Macaque
François' Langur

Hylobatidae
Siamang
Northern White-cheeked Gibbon

Hominidae
Bornean Orangutan
Sumatran Orangutan
Western Gorilla (nominate)
Chimpanzee
Human
 
Here's my list. Bolded species were seen in the wild.

Cheirogalidae (1 Species)
. Gray Mouse Lemur (Microcebus murinus)

Daubentodniidae (1 Species)
. Aye-Aye (Daubentonia madagascariensis)

Indriidae (1 Species)
. Coquerel's Sifaka (Propithecus coquereli)

Lemuridae (9-10 Species)
. Ring-tailed Lemur (Lemur catta)
. Common Brown Lemur (Eulemur fulvus)
. White-Fronted Lemur (Eulemur abifrons) (?)
. Collared Lemur Eulemur collaris
.
Red-Fronted Lemur (Eulemur rufifrons)
. Blue-eyed Black Lemur (Eulemur flavifrons)
. Crowned Lemur (Eulemur coronatus)
. Mongoose Lemur (Eulemur mongoz)
. Black-and-white Ruffed Lemur (Varecia variegata)
. Red Ruffed Lemur (Varecia rubra)

Lorisidae (2 Species)
. Pygmy Slow Loris (Xanthonycticebus pygmaeus)
. Sunda Slow Loris (Nycticebus coucang)

Galigidae (4 Species)
. Mohol Bushbaby (Galago moholi)
. Senegal Bushbaby (Galago senegalensis)
. Northern Greater Galago (Otolemur garnettii)
. Brown Greater Galago (Otolemur crassicaudatus)

Callitrichidae (11 Species)
. Red-handed Tamarin (Saguinus midas)
. Pied Tamarin (Saguinus bicolor)
. Cotton Topped Tamarin (Saguinus oedipus)
. Geoffroy's Tamarin (Saguinus geoffroyi)
. Bearded Emperor Tamarin (Saguinus imperator subgrisescens)
. Golden Lion Tamarin (Leontopithecus rosalia)
. Golden-headed Lion Tamarin (Leontopithecus chrysomelas)
. Goeldi's Marmoset (Callimico goeldii)
. Common Marmoset (Callithrix jacchus)
. Black-tufted Marmoset (Callithrix penicillata)
. Pygmy Marmoset (Cebuella sp)

Cebidae (4 Species)
. Tufted Capuchin (Sapajus apella)
. Colombian White-Faced Capuchin (Cebus capucinus)
. Guianan Squirrel Monkey (Saimiri sciureus)
. Black-Capped Squirrel Monkey (Saimiri boliviensis)

Aotidae (2 Species)
. Nancy Ma's Night Monkey (Aotus nancymaae)
. Grey-Bellied Night Monkey (Aotus lemurinus) (?)

Pitheciidae (4 Species)
. Bolivian Gray Titi (Plecturocebus donacophilus)
. Coppery Titi (Plecturocebus cupreus)
. Red-Backed Bearded Saki (Chiropotes chiropotes)
. White-faced Saki (Pithecia pithecia)

Atelidae (4 Species)
. Black Howler (Alouatta caraya)
. Venezuelan Red Howler (Alouatta seniculus)
. Geoffroy's Spider Monkey (Ateles geoffroyi)
. Black-Headed Spider Monkey (Ateles fusciceps)

Cercopithecidae (28 Species)
. Allen's Swamp Monkey (Allenopithecus nigroviridis)
. Common Patas Monkey (Erythrocebus patas)
. Vervet Monkey (Chlorocebus pygerythrus)
. Wolf's Guenon (Cercopithecus wolfi)
. DeBrazza's Guenon (Cercopithecus diana)
. Schmidt's Red-Tailed Guenon (Cercopithecus ascanius)
. Lesser Spot-Nosed Guenon (Cercopithecus petaurista)
. Diana Monkey (Cercopithecus diana)
. Mona Monkey (Cercopithecus mona)
. Stuhlman's Blue Monkey (Cercopithecus mitis stuhlmanni)
. Japanese Macaque (Macaca fuscata)
. Lion-Tailed Macaque (Macaca silenus)
. Sulawesi Crested Macaque (Macaca nigra)
. Booted Macaque (Macaca ochreata)
. Rhesus Macaque (Macaca mulatta)
. Crab-Eating Macaque (Macaca fascicularis)
. Gelada (Theropithecus gelada)
. Hamadryas Baboon (Papio anubis)
. Olive Baboon (Papio anubis)
. Chacma Baboon (Papio ursinus)
. Mandrill (Mandrillus sphinx)
. Black-Crested Mangabey (Lophocebus aterrimus)
. Angolan Colobus (Colobus angolensis)
. Mantled Guereza (Colobus guereza)
. Francois' Langur (Trachypithecus francoisi)
. Silvery Langur (Trachypithecus cristatus)
. Spectacled Langur (Trachypithecus obscurus)
. Javan Langur (Trachypithecus auratus)

Hylobatidae (5 Species)
. Northern White-Cheeked Gibbon (Nomascus leucogenys)
. Buff-Cheeked Gibbon (Nomascus gabriellae)
. Lar Gibbon (Hylobates lar)
. Muller's Grey Gibbon (Hylobates muelleri)
. Siamang (Symphalangus syndactylus)

Hominidae (6 Species)
.
Human (Homo sapiens)
. Western Lowland Gorilla (Gorilla gorilla)
. Sumatran Orangutan (Pongo abelii)
. Bornean Orangutan (Pongo pygmaeus)
. Common Chimpanzee (Pan troglodytes)
. Bonobo (Pan paniscus)

So 82-83 species overall. Hopefully I’ll be able to see more species soon, but I’m still proud of my total.
Looking back, it appears I forgot to add Red-Faced Spider Monkey (Ateles paniscus), which I saw at Brookfield in 2015. This brings my total up to 84.
 
Lorisidae (2):
Potto, Perodicticus potto
Pygmy Slow Loris, Xanthonycticebus pygmaeus

Galagidae (2):
Senegal Bushbaby, Galago senegalensis
Moholi Bushbaby, Galago moholi

Daubentoniidae (1 species):
Aye-aye, Daubentonia madagascariensis

Cheirogaleidae (1 species):
Grey Mouse Lemur, Microcebus murinus

Lemuridae (9 species):
Black-and-white Ruffed Lemur, Varecia variegata
Black Lemur, Eulemur macaco
Ring-tailed Lemur, Lemur catta
Lac Aloatra Gentle Lemur, Hapalemur aloatrensis
Mongoose Lemur, Eulemur mongoz
Red Ruffed Lemur, Varecia rubra
Red-bellied Lemur, Eulemur rubriventer
Red-fronted Lemur, Eulemur rufus
White-fronted Lemur, Eulemur albifrons

Atelidae (1 species):
Red-faced Spider Monkey, Ateles paniscus

Pitheciidae (1 species):
White-faced Saki, Pithecia pithecia

Callitrichidae (11 species):
Common Marmoset, Saguinus jacchus
Emperor Tamarin, Saguinus imperator
Geoffroy's Marmoset, Callithrix geoffroyi
Cotton-top Tamarin, Saguinus oedipus
Golden Lion Tamarin, Leontopithecus rosalia
Red-bellied Tamarin, Saguinus labiatus
Golden-headed Lion Tamarin, Leontopithecus chrysomelas
Midas Tamarin, Saguinus midas
Goeldi's Monkey, Callimico goeldii
Pygmy Marmoset, Cebuella pygmaea
Silvery Marmoset, Mico argentatus

Cebidae (3 species):
Black-capped Capuchin, Sapajus apella
Black-capped Squirrel Monkey, Saimiri boliviensis
South American Squirrel Monkey, Saimiri sciureus

Aotidae (2 species):
Nancy Ma's night monkey, Aotus nancymaae
Humboldt's night monkey, Aotus trivirgatus

Cercopithecidae (19 species):
Barbary Macaque, Macaca sylvanus
Cherry-crowned Mangabey, Cercocebus torquatus
White-naped mangabey, Cercocebus atys lunulatus
De Brazza's Monkey, Cercopithecus neglectus
Diana Monkey, Cercopithecus diana
Drill, Mandrillus leucophaeus
Guinea Baboon, Papio papio
Golden-bellied Mangabey, Cercocebus chrysogaster
Grivet Monkey, Chlorocebus aethiops
Hamadryas Baboon, Papio hamadryas
Japanese Macaque, Macaca fuscata
Lion-tailed Macaque, Macaca silenus
Mandrill, Mandrillus sphinx
Mantled Colobus, Colobus guereza
Northern talapoin monkey, Miopithecus ogouensis
Patas Monkey, Erythrocebus patas
Greater spot-nosed monkey, Cercopithecus nictitans martini
Rhesus Macaque, Macaca mulatta
Sulawesi Crested Macaque, Macaca nigra

Hylobatidae (4 species):
Lar, Hylobates lar
Northern White-cheeked Gibbon, Nomascus leucogenys
Pileated Gibbon, Hylobates pileatus
Siamang, Symphalangus syndactylus

Hominidae (4 species):
Bornean Orangutan, Pongo pygmaeus
Chimpanzee, Pan troglodytes
Sumatran Orangutan, Pongo abelii
Western Gorilla, Gorilla gorilla
 
Although the title of this thread states taxa, I have only included species in my list to avoid any debates regarding subspecies, and because I am not always sure whether the subspecies identification is accurate. Location and year of my first encounter with the species is also provided.

Lorisidae
(4 species):
Bengal Slow Loris Nycticebus bengalensis - Shaldon Zoo 2023
Grey Slender Loris Loris lydekkerianus - London Zoo 2013
Potto Perodicticus potto - London Zoo 2013
Pygmy Slow Loris Xanthonycticebus pygmaeus - Bristol Zoo Gardens 2021

Galagidae (2 species):
Moholi Bushbaby Galago moholi - London Zoo 2013
Senegal Bushbaby Galago senegalensis - Cotswold Wildlife Park 2023

Daubentoniidae (1 species):
Aye-aye Daubentonia madagascariensis - London Zoo 2021

Cheirogaleidae (1 species):
Grey Mouse Lemur Microcebus murinus - Cotswold Wildlife Park 2023

Lemuridae (12 species):
Black-and-white Ruffed Lemur Varecia variegata - Woburn Safari Park 2019
Black Lemur Eulemur macaco - Exmoor Zoo 2019
Blue-eyed Black Lemur Eulemur flavifrons - Bristol Zoo Gardens 2015
Crowned Lemur Eulemur coronatus - Marwell Zoo 2019
Greater Bamboo Lemur Prolemur simus - Cotswold Wildlife Park 2023
Lac Aloatra Gentle Lemur Hapalemur aloatrensis - London Zoo 2013
Mongoose Lemur Eulemur mongoz - Wildheart Animal Sanctuary 2023
Red Ruffed Lemur Varecia rubra - Woburn Safari Park 2019
Red-bellied Lemur Eulemur rubriventer - Woburn Safari Park 2019
Red-fronted Lemur Eulemur rufus - Woburn Safari Park 2019
Ring-tailed Lemur Lemur catta - London Zoo 2019
White-fronted Lemur Eulemur albifrons - Longleat Safari Park 2019

Indriidae (1 species):
Crowned Sifaka Propithecus coronatus - Cotswold Wildlife Park 2023

Atelidae (4 species):
Black Howler Alouatta caraya - Paignton Zoo 2017
Brown Spider Monkey Ateles hybridus - Paignton Zoo 2017
Red-faced Spider Monkey Ateles paniscus - London Zoo 2013
Woolly Monkey Lagothrix lagotricha - Parc Zoologique de Paris 2018

Pitheciidae (3 species):
Coppery Titi Plecturocebus cupreus - London Zoo 2013
Guianan Bearded Saki Chiropotes sagulatus - Colchester Zoo 2019
White-faced Saki Pithecia pithecia - Marwell Zoo 2013

Callitrichidae (13 species):
Black-tailed Marmoset Mico melanurus - Hemsley Conservation Centre 2022
Common Marmoset Saguinus jacchus - Longleat Safari Park 2015
Cotton-top Tamarin Saguinus oedipus - Marwell Zoo 2013
Emperor Tamarin Saguinus imperator - Marwell Zoo 2013
Geoffroy's Marmoset Callithrix geoffroyi - Longleat Safari Park 2015
Goeldi's Monkey Callimico goeldii - London Zoo 2013
Golden Lion Tamarin Leontopithecus rosalia - London Zoo 2013
Golden-headed Lion Tamarin Leontopithecus chrysomelas - London Zoo 2013
Midas Tamarin Saguinus midas - Longleat Safari Park 2015
Pygmy Marmoset Cebuella pygmaea - Marwell Zoo 2013
Red-bellied Tamarin Saguinus labiatus - Hemsley Conservation Centre 2022
Silvery Marmoset Mico argentatus - Exmoor Zoo 2019
Spix's Moustached Tamarin Saguinus mystax - Magdeburg Zoo 2023

Cebidae (4 species):
Black-capped Capuchin Sapajus apella - Battersea Park Children's Zoo 2015
Black-capped Squirrel Monkey Saimiri boliviensis - London Zoo 2013
Buffy-headed Capuchin Sapajus xanthosternos - Colchester Zoo 2016
South American Squirrel Monkey Saimiri sciureus - Colchester Zoo 2016

Aotidae (1 species):
Grey-bellied Night Monkey Aotus lemurinus - Edinburgh Zoo 2021

Cercopithecidae (27 species):
Angola Colobus Colobus angolensis - Magdeburg Zoo 2023
Barbary Macaque Macaca sylvanus - Woburn Safari Park 2019
Cherry-crowned Mangabey Cercocebus torquatus - Colchester Zoo 2016
De Brazza's Monkey Cercopithecus neglectus - Zoo de Beauval 2019
Diana Monkey Cercopithecus diana - London Zoo 2013
Drill Mandrillus leucophaeus - Bristol Zoo Gardens 2015
Dusky Langur Trachypithecus obscurus - Howletts Wild Animal Park 2019
Francois' Langur Trachypithecus francoisi - London Zoo 2013
Gelada Theropithecus gelada - Colchester Zoo 2016
Guinea Baboon Papio papio - Parc Zoologique de Paris 2018
Golden-bellied Mangabey Cercocebus chrysogaster - Burgers' Zoo 2022
Grivet Monkey Chlorocebus aethiops - Magdeburg Zoo 2023
Hamadryas Baboon Papio hamadryas - Paignton Zoo 2016
Hamlyn's Owl-faced Monkey Cercopithecus hamlyni - Antwerp Zoo 2022
Japanese Macaque Macaca fuscata - Highland Wildlife Park 2021
Javan Langur Trachypithecus auratus - Zoo de Beauval 2019
L'hoest's Monkey Cercopithecus lhoesti - Colchester Zoo 2016
Lion-tailed Macaque Macaca silenus - Colchester Zoo 2019
Mandrill Mandrillus sphinx - Colchester Zoo 2016
Mantled Colobus Colobus guereza - London Zoo 2013
Moustached Monkey Cercopithecus cephus - Zoo de Beauval 2019
Patas Monkey Erythrocebus patas - Woburn Safari Park 2019
Red-bellied Guenon Cercopithecus erythrogaster - Monkey World 2019
Rhesus Macaque Macaca mulatta - Longleat Safari Park 2015
Stump-tailed Macaque Macaca arctoides - Monkey World 2019
Sulawesi Crested Macaque Macaca nigra - London Zoo 2013
White-naped Mangabey Cercocebus lunulatus - London Zoo 2013

Hylobatidae (7 species):
Lar Hylobates lar - Tropiquaria Zoo 2015
Mueller's Gibbon Hylobates muelleri - Monkey World 2019
Northern White-cheeked Gibbon Nomascus leucogenys - London Zoo 2013
Pileated Gibbon Hylobates pileatus - Colchester Zoo 2016
Siamang Symphalangus syndactylus - Noah's Ark Zoo Farm 2016
Silvery Gibbon Hylobates moloch - Howletts Wild Animal Park 2019
Red-cheeked Gibbon Hylobates gabriellae - Exmoor Zoo 2019

Hominidae (5 species):
Bornean Orangutan Pongo pygmaeus - Colchester Zoo 2016
Chimpanzee Pan troglodytes - Whipsnade Zoo 2014
Eastern Gorilla Gorilla berengei - Antwerp Zoo 2022
Sumatran Orangutan Pongo abelii - Monkey World 2019
Western Gorilla Gorilla gorilla - London Zoo 2013

So, in total, I have seen 85 species of primate. Hopefully I will be able to make it to the hundred mark very soon, although obviously these final fifteen species will be the most difficult, having already seen most of the common ones. I may be much closer than the above list would suggest, as I am only including species that I have a clear memory of seeing. Particularly regarding Howletts and the two Paris zoos, there are species, some even considerable rarities, that I may or may not have seen, but in the hopes of creating a legitimate list, have chosen to exclude. Of course humans are excluded, as it feels like cheating, and had I not made the agonisingly stupid mistake of forgetting that Chester had Coquerel's Sifakas as I entered their Madagascan exhibit, prompting the decision to abandon the area and seek shelter from the rain elsewhere, I would of course be one step closer!

Even still, before creating this list I wouldn't have expected to cross the fifty mark, so am pleasantly surprised with 85! Thanks for creating this thread and providing the encouragement to create this!
For the record, in compiling my mammals life list, I realised that I had also seen Gabon Talapoin (at Magdeburg) and Southern Pig-tailed Macaque, bringing my total up to 87. :)
 
To follow the new Primate taxonomy is a full time job, but the astonishing diversity it reveals is worth every second. I am still missing around 20 species in Europe and NA and great number in Asia and SA.

14 Families 58 Genera 141 Species

Tarsiidae
Carlito
Cephalopachus
Tarsius

Lorisidae
Loris
Nycticebus
Xanthonycticebus

Arctocebus
Perodicticus

Galagidae
Euticos
Galago
Galagoides
Otolemur
Paragalago
Sciurocheirus

Cheirogaleidae
Allocebus
Cheirogaleus
Microcebus

Mirza
Phaner

Lepilemuridae
Lepilemur

Lemuridae
Eulemur
Hapalemur
Lemur
Prolemur
Varecia


Indriidae
Avahi
Indri
Propithecus

Daubentoniidae
Daubentonia

Atelidae
Alouatta
Ateles

Brachyteles
Lagothrix

Pitheciidae
Callicebus
Cheracebus
Plecturocebus
Cacajao
Chiropotes
Pithecia


Cebidae
Cebus
Sapajus
Saimiri


Callitrichidae
Callimico
Callithrix
Cebuella
Leontocebus
Leontopithecus
Mico
Saguinus


Aotidae
Aotus

Cercopithecidae
Allenopithecus
Allochrocebus
Cercocebus
Cercopithecus
Chlorocebus
Erythrocebus
Lophocebus
Macaca
Mandrillus
Miopithecus
Papio

Rungwecebus
Theropithecus
Colobus
Nasalis

Piliocolobus
Presbystis
Procolobus
Pygathrix
Rhinopithecus
Semnopithecus
Simias
Trachypithecus

Hylobatidae
Hoolock
Hylobates
Nomascus
Symphalangus


Hominidae
Pongo
Pan
Gorilla
Homo



Cheirogalidae
(4 Species)
1.Gray Mouse Lemur Microcebus murinus
2.Western Fat-tailed dwarf lemur Cheirogaleus medius
3.Ganzhorn`s mouse lemur Microcebus ganzhorni
4.Goodman's mouse lemur Microcebus lehilahytsara

Daubentodniidae (1 Species)
5.Aye-Aye Daubentonia madagascariensis

Indriidae (2 Species)
6. Coquerel's Sifaka Propithecus coquereli
7.
Crowned sifaka Propithecus coronatus


Lemuridae (16 Species)
8. White-Fronted Lemur Eulemur abifrons
9.
White-collared brown lemur Eulemur cinereiceps
10. Collared Lemur Eulemur collaris
11. Crowned Lemur Eulemur coronatus
12. Blue-eyed Black Lemur Eulemur flavifrons
13. Common Brown Lemur Eulemur fulvus
14. Black lemur Eulemur macaco
15. Mongoose Lemur Eulemur mongoz
16. Red-bellied lemur Eulemur rubriventer
17. Red-Fronted Lemur Eulemur rufifrons
18. Lac Alaotra bamboo lemur Hapalemur alaotrensis
19. Northern bamboo lemur Hapalemur occidentalis
20. Ring-tailed Lemur Lemur catta
21. Greater bamboo lemur Prolemur simus
22. Red Ruffed Lemur Varecia rubra
23. Black-and-white Ruffed Lemur Varecia variegata


Lorisidae (5 Species)
24. Grey slender loris Loris lydekkerianus
25. Bengal Slow Loris Nycticebus bengalensis
26. Sunda Slow Loris Nycticebus coucang
27. Potto Perodicticus potto
28. Pygmy Slow Loris Xanthonycticebus pygmaeus
.
Galigidae (4 Species)
29. Mohol Bushbaby Galago moholi
30. Senegal Bushbaby Galago senegalensis
31. Garnett's Greater Galago Otolemur garnettii
32. Thick-tailed greater galago Otolemur crassicaudatus

Callitrichidae (21 Species)
33. Goeldi's Marmoset Callimico goeldii
34. Geoffroy's tufted-ear marmoset Callithrix geoffroyi
35. White tufted-ear marmoset Callithrix jacchus
36. Black tufted-ear marmoset Callithrix penicillata
37. Western pygmy marmoset Cebuella pygmea
38. Eastern pygmy marmoset Cebuella niveiventris
39. Spix`s Saddle-back tamarin Leontocebus fuscicollis
40. Red-mantled saddle-back tamarin Leontocebus lagonotus
41. Black-mantled tamarin Leontocebus nigricollis
42. Weddell's saddle-back tamarin Leontocebus weddelli
43. Golden-headed Lion Tamarin Leontopithecus chrysomelas
44. Golden Lion Tamarin Leontopithecus rosalia
45. Silvery marmoset Mico argentatus
46. Black-tailed marmoset Mico melanurus
47. Pied Tamarin Saguinus bicolor
48. Emperor Tamarin Saguinus imperator
49. Red-bellied tamarin Saguinus labiatus
50. Golden-handed Tamarin Saguinus midas
51. Spix's moustached tamarin Saguinus mystax
52. Cotton Topped Tamarin Saguinus oedipus
53. Geoffroy's Tamarin Saguinus geoffroyi

Cebidae (7 Species)
54. White-faced capuchin Cebus capucinus
55. Guianan weeper capuchin Cebus olivaceus
56. Black-Capped Squirrel Monkey Saimiri boliviensis
57. Common Squirrel Monkey Saimiri sciureus
58. Black-capped Capuchin Sapajus apella
59. Crested capuchin Sapajus robustus
60. Yellow-breasted capuchin Sapajus xanthosternos

Aotidae (4 Species)
61.Azara`s night monkey Aotus azarae
62. Grey-handed Night Monkey Aotus griseimembra
63. Nancy Ma's Night Monkey Aotus nancymaae
64. Humboldt's night monkey Aotus trivirgatus


Pitheciidae (6 Species)
65. Bald uakari Cacajao calvus
66. Guianan bearded saki Chiropotes sagulatus
67. White-faced Saki Pithecia pithecia
68. Coppery Titi Plecturocebus cupreus
69. Bolivian Gray Titi Plecturocebus donacophilu
70. Red-Backed Bearded Saki Chiropotes chiropotes ?
.

Atelidae (8 Species)
71. Black Howler Alouatta caraya
72. Guianan red howler monkey Alouatta macconnelli
73. Red howler monkey Alouatta seniculus
74. Black-Headed spider monkey Ateles fusciceps
75. Geoffroy's spider monkey Ateles geoffroyi
76. Colombian brown spider monkey Ateles hybridus
77. Red-faced black spider monkey Ateles paniscus
78. Woolly monkey Lagothrix lagotricha


Cercopithecidae (48 Species)
79. Allen's Swamp monkey Allenopithecus nigroviridis
80. L'Hoest's monkey Allochrocebus lhoesti
81. Red-tail monkey Cercopithecus ascanius
82. Moustached monkey Cercopithecus cephus
83. Diana monkey Cercopithecus diana
84. Hamlyn's monkey Cercopithecus hamlyni
85. Lowe's monkey Cercopithecus lowei
86. Mona monkey Cercopithecus mona
87. DeBrazza's monkey Cercopithecus neglectus
88. Putty-nosed monkey Cercopithecus nictitans
89. Lesser spot-nosed monkey Cercopithecus petaurista
90. Roloway monkey Cercopithecus roloway
91. Wolf’s monkey Cercopithecus wolfi
92. Grivet Chlorocebus aethiops
93. Vervet Monkey Chlorocebus pygerythrus
94. Tantalus monkey Chlorocebus tantalus
95. Patas monkey Erythrocebus patas
96. Northern talapoin monkey Miopithecus ogouensis
97. White-naped mangabey Cercocebus lunulatus
98. Golden-bellied mangabey Cercocebus chrysogaster
99. Collared mangabey Cercocebus torquatus
100. Black crested mangabey Lophocebus aterrimus
101. Stump-tailed macaque Macaca arctoides
102. Crab-Eating macaque Macaca fascicularis
103. Japanese macaque Macaca fuscata
104. Heck's macaque Macaca hecki
105. Rhesus macaque Macaca mulatta
106. Sunda pig-tailed macaque Macaca nemestrina
107. Sulawesi Crested black macaque Macaca nigra
108. Lion-Tailed Macaque Macaca silenus
109. Toque macaque Macaca sinica
110. Barbary macaque Macaca sylvanus
111. Drill Mandrillus leucophaeus
112. Mandrill Mandrillus sphinx
113. Olive Baboon Papio anubis
114. Hamadryas Baboon Papio anubis
115. Guinea baboon Papio papio
116. Gelada Theropithecus gelada
117. Angolan Colobus Colobus angolensis
118. Mantled Guereza Colobus guereza
119. King Colobus Colobus polykomos
120. Proboscis monkey Nasalis larvatus
121. Red-shanked douc langur Pygathrix nemaeus
122. Hanuuan langur Semnopithecus entellus
123. Silvery leaf-monkey Trachypithecus cristatus
124. Javan lutung Trachypithecus auratus
125. Francois' langur Trachypithecus francoisi
126. Dusky langur Trachypithecus obscurus

Hylobatidae (8 Species)
127. Agile gibbon Hylobates agilis
128. Lar gibbon Hylobates lar
129. Moloch gibbon Hylobates moloch
130. Muller's grey gibbon Hylobates muelleri
131. Pileated gibbon Hylobates pileatus
132. Buff-cheeked gibbon Nomascus gabriellae
133. Northern White-Cheeked gibbon Nomascus leucogenys
134. Siamang Symphalangus syndactylus

Hominidae (7 Species)
135. Eastern gorilla Gorilla beringei
136. Western Gorilla Gorilla gorilla
137. Sumatran Orangutan Pongo abelii
138. Bornean Orangutan Pongo pygmaeus
139. Common Chimpanzee Pan troglodytes
140. Bonobo Pan paniscus
141. Human Homo sapiens

 
Here is my current primate credits as of my most recent trip (02/13/2024). I have observed 45 species of primate across 14 of the 16 primate families. Like others, I am missing out on Tarsiidae (Tarsiers) and Lepilemuridae (Sportive Lemurs).

Breakdown by Taxonomy.
  • Great Apes (Hominidae) - 5
    • Bonobo (Pan paniscus)
    • Bornean Orangutan (Pongo pygmaeus)
    • Chimpanzee (Pan troglodytes)
    • Sumatran Orangutan (Pongo abelii)
    • Western Lowland Gorilla (Gorilla gorilla gorilla)
  • Gibbons (Hylobatidae) - 6
    • Agile Gibbon (Hylobates agilis)
    • Javan Gibbon (Hylobates moloch)
    • Lar Gibbon (Hylobates lar)
    • Müller's Gibbon (Hylobates muelleri)
    • Northern White-cheeked Gibbon (Nomascus leucogenys)
    • Siamang (Symphalangus syndactylus)
  • Old World Monkeys (Cercopithecidae) - 13
    • Angola Colobus (Colobus angolensis)
    • Blue Monkey (Cercopithecus mitis)
    • Celebes Crested Macaque (Macaca nigra)
    • De Brazza's Monkey (Cercopithecus neglectus)
    • Drill (Mandrillus leucophaeus)
    • François' Lutung (Trachypithecus francoisi)
    • Hamadryas Baboon (Papio hamadryas)
    • Lion-tailed Macaque (Macaca silenus)
    • Mandrill (Mandrillus sphinx)
    • Mantled Guereza (Colobus guereza)
    • Patas Monkey (Erythrocebus patas)
    • Schmidt's Red-tailed Monkey (Cercopithecus ascanius schmidti)
    • Wolf's Monkey (Cercopithecus wolfi)
  • Night Monkeys (Aotidae) - 1
    • Northern Night Monkey (Aotus trivirgatus)
  • Spider, Howler, and Woolly Monkeys (Atelidae) - 3
    • Black-and-gold Howler Monkey (Alouatta caraya)
    • Brown-headed Spider Monkey (Ateles fusciceps)
    • Colombian Spider Monkey (Ateles fusciceps rufiventris)
  • Marmosets and Tamarins (Callitrichidae) - 2
    • Cotton-headed Tamarin (Saguinus oedipus)
    • Golden Lion Tamarin (Leontopithecus rosalia)
  • Cebid Monkeys (Cebidae) - 1
    • Common Squirrel Monkey (Saimiri sciureus)
  • Sakis, Titis, and Uakaris (Pitheciidae) - 2
    • Bolivian Gray Titi (Plecturocebus donacophilus)
    • White-faced Saki (Pithecia pithecia)
  • Tarsiers (Tarsiidae) - 0
  • Aye-Ayes (Daubentoniidae) - 1
    • Aye-Aye (Daubentonia madagascariensis)
  • Dwarf and Mouse Lemurs (Cheirogaleidae) - 1
    • Grey Mouse Lemur (Microcebus murinus)
  • Indris, Sifakas, and Woolly Lemurs (Indriidae) - 1
    • Coquerel's Sifaka (Propithecus coquereli)
  • Typical Lemurs (Lemuridae) - 7
    • Black Lemur (Eulemur macaco)
    • Black-and-white Ruffed Lemur (Varecia variegata)
    • Collared Brown Lemur (Eulemur collaris)
    • Crowned Lemur (Eulemur coronatus)
    • Mongoose Lemur (Eulemur mongoz)
    • Red Ruffed Lemur (Varecia rubra)
    • Ring-tailed Lemur (Lemur catta)
  • Sportive Lemurs (Lepilemuridae) - 0
  • Galagos (Galagidae) - 1
    • Brown Greater Galago (Otolemur crassicaudatus)
  • Lorises and Pottos (Lorisidae) - 1
    • West African Potto (Perodicticus potto)
In terms of number of species observed, Old World Monkeys (Cercopithecidae) ranks in first with 13 species seen, followed by Typical Lemurs (Lemuridae) with 7 species and Gibbons (Hylobatidae) with 6 species.

  1. Omaha's Henry Doorly Zoo - 26
    • Agile Gibbon (Hylobates agilis)
    • Aye-Aye (Daubentonia madagascariensis)
    • Angola Colobus (Colobus angolensis)
    • Black Lemur (Eulemur macaco)
    • Black-and-gold Howler Monkey (Alouatta caraya)
    • Black-and-white Ruffed Lemur (Varecia variegata)
    • Bornean Orangutan (Pongo pygmaeus)
    • Brown Greater Galago (Otolemur crassicaudatus)
    • Brown-headed Spider Monkey (Ateles fusciceps)
    • Blue Monkey (Cercopithecus mitis)
    • Celebes Crested Macaque (Macaca nigra)
    • Common Squirrel Monkey (Saimiri sciureus)
    • Coquerel's Sifaka (Propithecus coquereli)
    • De Brazza's Monkey (Cercopithecus neglectus)
    • François' Lutung (Trachypithecus francoisi)
    • Lar Gibbon (Hylobates lar)
    • Mantled Guereza (Colobus guereza)
    • Mongoose Lemur (Eulemur mongoz)
    • Müller's Gibbon (Hylobates muelleri)
    • Northern Night Monkey (Aotus trivirgatus)
    • Red Ruffed Lemur (Varecia rubra)
    • Ring-tailed Lemur (Lemur catta)
    • Siamang (Symphalangus syndactylus)
    • West African Potto (Perodicticus potto)
    • Western Lowland Gorilla (Gorilla gorilla gorilla)
    • Wolf's Monkey (Cercopithecus wolfi)
  2. Zoo Atlanta - 11
    • Angola Colobus (Colobus angolensis)
    • Black-and-white Ruffed Lemur (Varecia variegata)
    • Bornean Orangutan (Pongo pygmaeus)
    • Crowned Lemur (Eulemur coronatus)
    • Drill (Mandrillus leucophaeus)
    • Golden Lion Tamarin (Leontopithecus rosalia)
    • Ring-tailed Lemur (Lemur catta)
    • Schmidt's Red-tailed Monkey (Cercopithecus ascanius schmidti)
    • Sumatran Orangutan (Pongo abelii)
    • Western Lowland Gorilla (Gorilla gorilla gorilla)
    • Wolf's Monkey (Cercopithecus wolfi)
  3. North Carolina Zoo - 9
    • Chimpanzee (Pan troglodytes)
    • Grey Mouse Lemur (Microcebus murinus)
    • Hamadryas Baboon (Papio hamadryas)
    • Mantled Guereza (Colobus guereza) (No longer present)
    • Patas Monkey (Erythrocebus patas) (No longer present)
    • Red Ruffed Lemur (Varecia rubra)
    • Ring-tailed Lemur (Lemur catta) (No longer present)
    • Western Lowland Gorilla (Gorilla gorilla gorilla)
    • Wolf's Monkey (Cercopithecus wolfi) (No longer present)
  4. Disney's Animal Kingdom - 8
    • Angola Colobus (Colobus angolensis)
    • Collared Brown Lemur (Eulemur collaris)
    • Lion-tailed Macaque (Macaca silenus)
    • Mandrill (Mandrillus sphinx)
    • Northern White-cheeked Gibbon (Nomascus leucogenys)
    • Ring-tailed Lemur (Lemur catta)
    • Siamang (Symphalangus syndactylus)
    • Western Lowland Gorilla (Gorilla gorilla gorilla)
  5. Jacksonville Zoo and Gardens - 8
    • Black-and-gold Howler Monkey (Alouatta caraya)
    • Bonobo (Pan paniscus)
    • Common Squirrel Monkey (Saimiri sciureus)
    • Coquerel's Sifaka (Propithecus coquereli)
    • Cotton-headed Tamarin (Saguinus oedipus)
    • Mantled Guereza (Colobus guereza)
    • Siamang (Symphalangus syndactylus)
    • Western Lowland Gorilla (Gorilla gorilla gorilla)
  6. Riverbanks Zoo and Gardens - 8
    • Common Squirrel Monkey (Saimiri sciureus)
    • Golden Lion Tamarin (Leontopithecus rosalia)
    • Hamadryas Baboon (Papio hamadryas)
    • Red Ruffed Lemur (Varecia rubra)
    • Ring-tailed Lemur (Lemur catta)
    • Siamang (Symphalangus syndactylus)
    • Western Lowland Gorilla (Gorilla gorilla gorilla)
    • White-faced Saki (Pithecia pithecia)
  7. ZooTampa at Lowry Park - 8
    • Bolivian Gray Titi (Plecturocebus donacophilus)
    • Bornean Orangutan (Pongo pygmaeus)
    • Collared Brown Lemur (Eulemur collaris)
    • Golden Lion Tamarin (Leontopithecus rosalia)
    • Mandrill (Mandrillus sphinx)
    • Patas Monkey (Erythrocebus patas)
    • Ring-tailed Lemur (Lemur catta)
    • Siamang (Symphalangus syndactylus)
  8. Greensboro Science Center - 6
    • Bolivian Gray Titi (Plecturocebus donacophilus)
    • Black-and-gold Howler Monkey (Alouatta caraya)
    • Golden Lion Tamarin (Leontopithecus rosalia)
    • Javan Gibbon (Hylobates moloch)
    • Red Ruffed Lemur (Varecia rubra)
    • Ring-tailed Lemur (Lemur catta)
  9. Greenville Zoo - 6
    • Angola Colobus (Colobus angolensis)
    • Black-and-white Ruffed Lemur (Varecia variegata)
    • Bornean Orangutan (Pongo pygmaeus)
    • Colombian Spider Monkey (Ateles fusciceps rufiventris)
    • Siamang (Symphalangus syndactylus)
    • Schmidt's Red-tailed Monkey (Cercopithecus ascanius schmidti)
  10. Virginia Zoo - 3
    • Bornean Orangutan (Pongo pygmaeus)
    • Northern White-cheeked Gibbon (Nomascus leucogenys)
    • Siamang (Symphalangus syndactylus)
  11. Durham Museum of Life and Sciences - 1
    • Ring-tailed Lemur (Lemur catta)
  12. Florida Aquarium - 1
    • Ring-tailed Lemur (Lemur catta)
  13. Lazy 5 Ranch - 1
    • Ring-tailed Lemur (Lemur catta)
  14. Tennessee Aquarium - 1
    • Ring-tailed Lemur (Lemur catta)

Omaha's Henry Doorly Zoo is the most primate-rich facility I have visited, at 26 species observed (and they have more than what I listed; my visit was from back in 2017 and I only listed what I remember seeing). This is followed by Zoo Atlanta with 11 species and then by a 4-way tie with Disney's Animal Kingdom, Jacksonville Zoo and Gardens, Riverbanks Zoo and Gardens, and ZooTampa at Lowry Park, all with 8 species, in terms of number of species seen in one visit.

If I combined all visits to a single facility for those I have visited multiple times, North Carolina Zoo would rank in 3rd place. I have collectively seen 9 species there, of which 4 are no longer present.

  1. Ring-tailed Lemur (Lemur catta) - 11
    • Disney's Animal Kingdom
    • Durham Museum of Life and Sciences
    • Florida Aquarium
    • Greensboro Science Center
    • Lazy 5 Ranch
    • North Carolina Zoo
    • Omaha's Henry Doorly Zoo
    • Riverbanks Zoo and Gardens
    • Tennessee Aquarium
    • Zoo Atlanta
    • ZooTampa at Lowry Park
  2. Siamang (Symphalangus syndactylus) - 7
    • Disney's Animal Kingdom
    • Greenville Zoo
    • Jacksonville Zoo and Gardens
    • Omaha's Henry Doorly Zoo
    • Riverbanks Zoo and Gardens
    • Virginia Zoo
    • ZooTampa at Lowry Park
  3. Western Lowland Gorilla (Gorilla gorilla gorilla) - 6
    • Disney's Animal Kingdom
    • Jacksonville Zoo and Gardens
    • North Carolina Zoo
    • Omaha's Henry Doorly Zoo
    • Riverbanks Zoo and Gardens
    • Zoo Atlanta
  4. Bornean Orangutan (Pongo pygmaeus) - 5
    • Greenville Zoo
    • Omaha's Henry Doorly Zoo
    • Virginia Zoo
    • Zoo Atlanta
    • ZooTampa at Lowry Park
  5. Angola Colobus (Colobus angolensis) - 4
    • Disney's Animal Kingdom
    • Greenville Zoo
    • Omaha's Henry Doorly Zoo
    • Zoo Atlanta
  6. Golden Lion Tamarin (Leontopithecus rosalia) - 4
    • Greensboro Science Center
    • Riverbanks Zoo and Gardens
    • Zoo Atlanta
    • ZooTampa at Lowry Park
  7. Red Ruffed Lemur (Varecia rubra) - 4
    • Greensboro Science Center
    • North Carolina Zoo
    • Omaha's Henry Doorly Zoo
    • Riverbanks Zoo and Gardens
  8. Black-and-gold Howler Monkey (Alouatta caraya) - 3
    • Greensboro Science Center
    • Jacksonville Zoo and Gardens
    • Omaha's Henry Doorly Zoo
  9. Black-and-white Ruffed Lemur (Varecia variegata) - 3
    • Greenville Zoo
    • Omaha's Henry Doorly Zoo
    • Zoo Atlanta
  10. Common Squirrel Monkey (Saimiri sciureus) - 3
    • Jacksonville Zoo and Gardens
    • Omaha's Henry Doorly Zoo
    • Riverbanks Zoo and Gardens
  11. Mantled Guereza (Colobus guereza) - 3
    • Jacksonville Zoo and Gardens
    • North Carolina Zoo
    • Omaha's Henry Doorly Zoo
  12. Wolf's Monkey (Cercopithecus wolfi) - 3
    • Omaha's Henry Doorly Zoo
    • North Carolina Zoo
    • Zoo Atlanta
  13. Bolivian Gray Titi (Plecturocebus donacophilus) - 2
    • Greensboro Science Center
    • ZooTampa at Lowry Park
  14. Collared Brown Lemur (Eulemur collaris) - 2
    • Disney's Animal Kingdom
    • ZooTampa at Lowry Park
  15. Coquerel's Sifaka (Propithecus coquereli) - 2
    • Jacksonville Zoo and Gardens
    • Omaha's Henry Doorly Zoo
  16. Hamadryas Baboon (Papio hamadryas) - 2
    • North Carolina Zoo
    • Riverbanks Zoo and Gardens
  17. Mandrill (Mandrillus sphinx) - 2
    • Disney's Animal Kingdom
    • ZooTampa at Lowry Park
  18. Northern White-cheeked Gibbon (Nomascus leucogenys) - 2
    • Disney's Animal Kingdom
    • Virginia Zoo
  19. Patas Monkey (Erythrocebus patas) - 2
    • North Carolina Zoo (No Longer Present)
    • ZooTampa at Lowry Park
  20. Schmidt's Red-tailed Monkey (Cercopithecus ascanius schmidti) - 2
    • Greenville Zoo
    • Zoo Atlanta
  21. Agile Gibbon (Hylobates agilis) - 1
    • Omaha's Henry Doorly Zoo
  22. Aye-Aye (Daubentonia madagascariensis) - 1
    • Omaha's Henry Doorly Zoo
  23. Black Lemur (Eulemur macaco) - 1
    • Omaha's Henry Doorly Zoo
  24. Bonobo (Pan paniscus) - 1
    • Jacksonville Zoo and Gardens
  25. Brown Greater Galago (Otolemur crassicaudatus) - 1
    • Omaha's Henry Doorly Zoo
  26. Brown-headed Spider Monkey (Ateles fusciceps) - 1
    • Omaha's Henry Doorly Zoo
  27. Blue Monkey (Cercopithecus mitis) - 1
    • Omaha's Henry Doorly Zoo
  28. Celebes Crested Macaque (Macaca nigra) - 1
    • Omaha's Henry Doorly Zoo
  29. Chimpanzee (Pan troglodytes) - 1
    • North Carolina Zoo
  30. Colombian Spider Monkey (Ateles fusciceps rufiventris) - 1
    • Greenville Zoo
  31. Cotton-headed Tamarin (Saguinus oedipus) - 1
    • Jacksonville Zoo and Gardens
  32. Crowned Lemur (Eulemur coronatus) - 1
    • Zoo Atlanta
  33. De Brazza's Monkey (Cercopithecus neglectus) - 1
    • Omaha's Henry Doorly Zoo
  34. Drill (Mandrillus leucophaeus) - 1
    • Zoo Atlanta
  35. François' Lutung (Trachypithecus francoisi) - 1
    • Omaha's Henry Doorly Zoo
  36. Grey Mouse Lemur (Microcebus murinus) - 1
    • North Carolina Zoo
  37. Javan Gibbon (Hylobates moloch) - 1
    • Greensboro Science Center
  38. Lar Gibbon (Hylobates lar) - 1
    • Omaha's Henry Doorly Zoo
  39. Lion-tailed Macaque (Macaca silenus) - 1
    • Disney's Animal Kingdom
  40. Mongoose Lemur (Eulemur mongoz) - 1
    • Omaha's Henry Doorly Zoo
  41. Müller's Gibbon (Hylobates muelleri) - 1
    • Omaha's Henry Doorly Zoo
  42. Northern Night Monkey (Aotus trivirgatus) - 1
    • Omaha's Henry Doorly Zoo
  43. Sumatran Orangutan (Pongo abelii) - 1
    • Zoo Atlanta
  44. West African Potto (Perodicticus potto) - 1
    • Omaha's Henry Doorly Zoo
  45. White-faced Saki (Pithecia pithecia) - 1
    • Riverbanks Zoo and Gardens

The Ring-tailed Lemur (Lemur catta) is my most-observed primate, being found at 11 facilities I have visited (although it is no longer present at one of them), followed by the Siamang (Symphalangus syndactylus) at 7 facilities and the Western Lowland Gorilla (Gorilla gorilla gorilla) with 6 facilities. This should be surprising to no one.
 
Lorisida:
Potto
Slow loris

Galagidae:
Senegal bushbaby

Daubentoniidae:
N/A

Cheirogaleidae:
N/A

Indridae:
Conquerel’s sifaka

Lemuridae:
Black-and-white ruffed lemur
Red ruffed lemur
Collared lemur
Mongoose lemur
Blue-eyed black lemur
Ring-tailed lemur

Atelidae:
Black-tailed spider monkey
Black-handed spider monkey
Southern brown howler monkey

Pitheciidae:
Bolivian gray titi monkey
White-faced saki

Callitrichidae:
Pygmy marmoset
Cotton-top tamarin
Golden lion tamarin
Golden-headed lion tamarin
Emperor tamarin
Pied tamarin

Cebidae:
Tufted capuchin
Common squirrel monkey

Aotidae:
N/A

Cercopithecidae:

Black-and-white colobus
Francois langur
Javan lutung
Silvery lutung
Sulawesi crested macaque
Lion-tailed macaque
DeBrazza’s monkey
Allen’s swamp monkey
Wolff’s guenon
Guinea baboon
Gelada
Mandrill

Hylobatidae:
White-cheeked gibbon
Crested gibbon
Siamang

Hominidae:
Chimpanzee
Bonobo
Western lowland gorilla
Bornean orangutan
Sumatran orangutan
 
Here is my list Part one Lemurs and Marmosetts and Tamarins

1. Ring tailed Lemur 7 Zoos
2. Crowned Lemur 2 Zoos
3. Black Lemur 1 Zoo
4. Black and white ruffed Lemur 1 Zoo
5. Red ruffed Lemur 2 Zoos
6. Red tailed Emperor Tamarin 1 Zoo
7. Cotton top Tamarin 1 Zoo
8. Golden headed Lion Tamarin 3 Zoos
9. Goeldis Monkey 1 Zoo
10. Common Marmosett 4 Zoos
11. Pygmy Marmosett 2 Zoos
 
Lorisidae (1 species)
Pygmy Slow Loris (Xanthonycticebus pygmaeus)

Galagidae (1 species)
Southern Lesser Galago (Galago moholi)

Daubentoniidae (1 species)
Aye-aye (Daubentonia madagascariensis)

Lemuridae (5 species)
Crowned Lemur (Eulemur coronatus)
Mongoose Lemur (Eulemur mongoz)
Ring-tailed Lemur (Lemur catta)
Red Ruffed Lemur (Varecia rubra)
Black-and-white Ruffed Lemur (Varecia variegata)

Indriidae (1 species)
Coquerel's Sifaka (Propithecus coquereli)

Atelidae (3 species)
Black-and-gold Howler Monkey (Alouatta caraya)
Brown-headed Spider Monkey (Ateles fusciceps)
Central American Spider Monkey (Ateles geoffroyi)

Pitheciidae (2 species)
White-faced Saki (Pithecia pithecia)
Bolivian Gray Titi (Plecturocebus donacophilus)

Callitrichidae (7 species)
Goeldi's Marmoset (Callimico goeldii)
Geoffroy's Tufted-ear Marmoset (Callithrix geoffroyi)
Golden-headed Lion Tamarin (Leontopithecus chrysomelas)
Golden Lion Tamarin (Leontopithecus rosalia)
Brazilian Bare-faced Tamarin (Saguinus bicolor)
Emperor Tamarin (Saguinus imperator)
Cotton-headed Tamarin (Saguinus oedipus)

Cebidae (2 species)
Common Squirrel Monkey (Saimiri sciureus)
Brown Capuchin (Sapajus apella)

Cercopithecidae (11 species)
Allen's Swamp Monkey (Allenopithecus nigroviridis)
Red-tailed Monkey (Cercopithecus ascanius)
Diana Guenon (Circopithecus diana)
De Brazza's Monkey (Cercopithecus neglectus)
Mantled Guereza (Colobus guereza)
Japanese Macaque (Macaca fuscata)
Lion-tailed Macaque (Macaca silenus)
Guinea Baboon (Papio papio)
Javan Lutung (Trachypithecus auratus)
Silvered Leaf Monkey (Trachypithecus cristatus)
François' Lutung (Trachypithecus francoisi)

Hylobatidae (3 species)

Lar Gibbon (Hylobates lar)
Northern White-cheeked Gibbon (Nomascus leucogenys)
Siamang (Symphalangus syndactylus)

Hominidae (5 species)

Western Lowland Gorilla (Gorilla gorilla)
Human (Homo sapiens)
Chimpanzee (Pan troglodytes)
Sumatran Orangutan (Pongo abelii)
Bornean Orangutan (Pongo pygmaeus)

Total: 42 species
 
part too New world Monkeys, Old world Monkeys and Apes

12. White shouldred Capuchin 1 Zoo
13. Tufted Capuchin 3 Zoos
14. Yellow breasted Capuchin 1 Zoo
15. Black capped Squirrel Monkey 3 Zoos
16. Common Squirrel Monkey 3 Zoos
17. White faced Saki 1 Zoo
18. Black howler Monkey 1 Zoo
19. Brown Spider Monkey 1 Zoo
20. Brown headed Spider Monkey 2 Zoos
21. Geoffroys Spider Monkey 1 Zoo
22. Black and white Colobus Monkey 1 Zoo
23. Indian grey Langur 1 Zoo
24. Northern talapoin Monkey 1 Zoo
25. Long tailed Macaque 1 Zoo
26. Japanese red faced Macaque/ Snow Monkey 2 Zoos
27. Rhesus Macaque 1 Zoo
28. Southern pig tailed Macaque 2 Zoos
29. Lion tailed Macaque 1 Zoo
30. Barbary Macaque 4 Zoos
31. White naped Mangabey 2 Zoos
32. Collared Mangabey 2 Zoos
33. Mandrill 1 Zoo
34. Hamadryas Baboon 5 Zoos
35. Guinea Baboon 1 Zoo
36. Gelada Baboon 3 Zoos
37. White handed Gibbon 2 Zoos
38. Silvery Gibbon 2 Zoos
39. Pileated Gibbon 1 Zoo
40. Siamang 1 Zoo
41. Western Lowland Gorilla 7 Zoos
42. Bonobo 1 Zoo
43. Chimpanzee 5 Zoos
44. Orang Utan 5 Zoos
 
Time for an update, now that I have eight additional zoos under my belt.

I have seen around 69 species of primate out of 38 genera, with as many as three further species I have likely seen but do not actively remember. I elected *not* to count those I did not have in direct memory.

Tarsiidae
[none]

Lorisidae
Nycitebus
Pygmy slow loris

Loris
Northern dry zone grey slender loris

Arctocebus
Potto

Galagidae


Galago
Moholi bushbaby
Senegal bushbaby

Cheirogaleidae
[none]

Lepilemuridae
[none]

Lemuridae
Eulemur
Black lemur
Mongoose lemur
Crowned lemur
Red-bellied lemur

Hapalemur
Lake Alaotra bamboo lemur

Lemur
Ringtail lemur

Varecia
Red ruffed lemur
Black and white ruffed lemur

Indriidae

Coquerel's sifaka

Daubentoniidae
Aye-aye

Atelidae

Alouatta
Black and Gold Howler Monkey
Venezuelian/Columbian Red Howler Monkey

Ateles
Red-Faced Spider Monkey
Black-Handed Spider Monkey (A. geoffroyi geoffroyi)
Black-Headed Spider Monkey (A. fusciceps)
Colombian Black Spider Monkey (A. fusciceps rufiventris)

Pitheciidae
Plecturocebus
Coppery titi
Bolivian gray titi

Pithecia
White-faced saki

Cebidae


Sapajus
Tufted capuchin
Yellow-breasted capuchin

Samiri
Common squirrel monkey
Black-capped squirrel monkey


Callitrichidae

Callimico
Callimico / Goeldi's monkey

Callithrix

Common marmoset
Geoffrey's white-fronted marmoset

Cebuella
Eastern pygmy marmoset

Leontopithecus
Golden lion tamarin
Golden-headed lion tamarin

Mico
Silvery marmoset

Saguinus
Cotton-top tamarin
Pied tamarin
Emperor tamarin
Red-handed tamarin
Red-bellied tamarin

Aotidae

Aotus
Douroucouli Monkey

Cercopithecidae

Allenopithecus
Allen's Swamp Monkey

Cercocebus
White-Naped Mangabey

Cercopithecus
Debrazza's Monkey
Diana Monkey
Roloway Monkey
Lesser Spot-Nosed Monkey

Macaca

Japanese Macaque
Lion-Tailed Macaque
Sulawesi Black Crested Macaque

Mandrillus

Mandrill
Drill

Papio
Guinea Baboon

Colobus
Angolan Colobus
Mantled Guereza/Eastern Black-and-White Colobus

Trachypithecus
Francois' langur
Spectacled langur

Semnopithecus
Hanuman langur

Hylobatidae
Hylobates
Lar Gibbon
Javan Silvery Gibbon

Nomascus

Northern White-Cheeked Gibbon

Symphalangus

Siamang

Hominidae

Pongo
Bornean orangutan
Sumatran orangutan

Pan
Common Chimpanzee
Bonobo

Gorilla
Western lowland gorilla

Homo
Human

I was unsure whether to count Kikuyu Black-and-White Colobus as a separate species and so did not. I was also unsure about the Colombian spider monkeys but decided to count them differently.

Species I have possibly seen but not in active memory: Rhesus macaque, black crested mangabey, red-capped mangabey

Species I missed during my most recent trip: white-belted black and white ruffed lemur, Gelada, I believe I also missed collared lemur but may need to double check my photos

I am hoping by the end of the year to add at least one more species to this list, fingers crossed.
 
Here's what I've seen.

Family Indriidae (1 species)
Coquerel's Sifaka (Propithecus coquereli)
Family Lemuridae (8 species)
Black and White Ruffed Lemur (Varecia variegata)
Blue-Eyed Black Lemur (Eulemur flavifrons)
Collared Lemur (Eulemur collaris)
Crowned Lemur (Eulemur coronatus)
Red-Bellied Lemur (Eulemur rubriventer)
Red-Fronted Lemur (Eulemur rufus)
Red Ruffed Lemur (Varecia rubra)
Ring-Tailed Lemur (Lemur catta)
Family Lorisidae (2 species)
Potto (Perodicticus potto)
Pygmy Slow Loris (Xanthonycticebus pygmaeus)
Family Galagidae (2 species)
Mohol Bushbaby (Galago moholi)
Northern Greater Galago (Otolemur garnettii)
Family Callitrichidae (8 species)
Black-Tufted Marmoset (Callithrix penicillata)
Common Marmoset (Callithrix jacchus)
Cotton-Top Tamarin (Saguinus oedipus)
Emperor Tamarin (Saguinus imperator)
Geoffroy's Marmoset (Callithrix geoffroyi)
Goeldi's Monkey (Callimico goeldii)
Golden-Headed Lion Tamarin (Leontopithecus chrysomelas)
Golden Lion Tamarin (Leontopithecus rosalia)
Family Cebidae (5 species)
Black-Capped Squirrel Monkey (Saimiri boliviensis)
Common Squirrel Monkey (Saimiri sciureus)
Crested Capuchin (Sapajus robustus)
Tufted Capuchin (Sapajus apella)
White-Faced Capuchin (Cebus capucinus)
Family Pitheciidaee (2 species)
Bolivian Grey Titi (Plecturocebus donacophilus)
White-Faced Saki (Pithecia pithecia)
Family Atelidae (3 species)
Black-Handed Spider Monkey (Ateles geoffroyi)
Black-Headed Spider Monkey (Ateles fusciceps)
Black Howler Monkey (Alouatta caraya)
Family Cercopithecidae (18 species)
Allen's Swamp Monkey (Allenopithecus nigroviridis)
Angola Colobus (Colobus angolensis)
Black Crested Mangabey (Lophocebus aterrimus)
Celebes Crested Macaque (Macaca nigra)
DeBrazza's Monkey (Cercopithecus neglectus)
Diana Monkey (Cercopithecus diana)
Francois' Leaf Monkey (Trachypithecus francoisi)
Grivet (Chlorocebus aethiops)
Japanese Macaque (Macaca fuscata)
Lion-Tailed Macaque (Macaca silenus)
Mandrill (Mandrillus sphinx)
Mantled Colobus (Colobus guereza)
Northern Plains Grey Langur (Semnopithecus entellus)
Patas Monkey (Erythrocebus patas)
Red-Tailed Monkey (Cercopithecus ascanius)
Sooty Mangabey (Cercocebus atys)
Vervet (Chlorocebus pygerythrus)
Wolf's Mona Monkey (Cercopithecus wolfi)
Family Hylobatidae (4 species)
Lar Gibbon (Hylobates lar)
Northern White-Cheeked Gibbon (Nomascus leucogenys)
Siamang (Symphalangus syndactylus)
Family Hominidae (5 species)
Bornean Orangutan (Pongo pygmaeus)
Common Chimpanzee (Pan troglodytes)
Human (Homo sapiens)
Sumatran Orangutan (Pongo abelii)
Western Gorilla (Gorilla gorilla)

All of these species except humans, are the ones I've seen exclusively in captivity (I haven't seen humans in captivity, of course). I've seen a modest and small total of 58 species in my life out of the hundreds of primate species in the world. I haven't seen any individuals in the Tarsiidae family, Lepilemuridae family, Aotidae family, Daubentoniidae family, and the Cheirogaleidae family. Hopefully, this list will be expanded in the future.
 
Hello.

Primates I have seen since 2021:

Lemuridae:
(Lemur catta): Ring-tailed lemur - Taubaté, São Paulo (aquarium), Itatiba

(Varecia variegata): Black-and-white-ruffed lemur - Taubaté, Itatiba

Callithricidae:
(Callithrix auratus): Buffy-tufted marmoset - Guarulhos
(Callithrix geoffroyi): White-faced marmoset - Itatiba, Sapucaia do Sul
(Callithrix jacchus): White-eared marmoset - introduced*
(Callithrix penicillata): Black-eared marmoset - wild, Guarulhos, Sorocaba, Sapucaia do Sul

(Leontocebus weddelli): Weddell's saddleback tamarin - Sorocaba

(Leontopithecus chrysomelas): golden-headed lion tamarin - São Paulo (zoo), Itatiba, Sorocaba, Belo Horizonte, Pomerode, Sapucaia do Sul
(Leontopithecus chysopygus): black lion tamarin - São Paulo (zoo), Belo Horizonte, Pomerode
(Leontopithecus rosalia): golden lion tamarin - Rio, São Paulo (zoo), Itatiba, Sorocaba, Belo Horizonte, Pomerode

(Mico argentatus): Silvery marmoset - Itatiba

(Saguinus bicolor): Pied tamarin - Guarulhos, Sorocaba
(Saguinus imperator): Emperor tamarin - Belo Horizonte, Pomerode
(Saguinus labiatus): White-lipped tamarin - Rio de Janeiro
(Saguinus midas): Golden-handed tamarin - Sorocaba (midas), Itatiba
(Saguinus niger): Black tamarin - Sorocaba

Pithecidae:
(Cacajao calvus): Red uakari - Itatiba (rubicundus)

(Callicebus nigrifrons): Black-fronted titi - Guarulhos, Itatiba

(Chiropotes chiropotes): Red-backed bearded saki - Itatiba
(Chiropotes utahicki): Uta Hick's bearded saki - Rio de Janeiro, Sorocaba

(Pithecia irrorata): Gray's bald-faced saki - Rio de Janeiro, Belo Horizonte
(Plecturocebus vieirai): Vieira's titi - Sorocaba

Atelidae:
(Alouatta belzebul): Red-handed howler - Rio de Janeiro
(Alouatta caraya): Black howler - São Paulo (zoo), Sorocaba, Pomerode, Sapucaia do Sul, Gramado
(Alouatta guariba): Brown howler - wild (clamitans), São Paulo (aquarium) (clamitans), Sorocaba (clamitans), Belo Horizonte (clamitans), Pomerode (clamitans), Sapucaia do Sul (clamitans)
(Alouatta seniculus): Venezuelan red howler - Rio de Janeiro

(Ateles belzebuth): White-bellied spider monkey - Itatiba
(Ateles chamek): Peruvian spider monkey - Rio de Janeiro, Volta Redonda, São Paulo (zoo), Sorocaba, Curitiba (Passeio Público), Sapucaia do Sul
(Ateles marginatus): White-cheeked spider monkey - Rio de Janeiro, Volta Redonda, São Paulo (zoo), Sorocaba, Pomerode, Sapucaia do Sul, Gramado
(Ateles paniscus): Red-faced spider monkey - Itatiba, Gramado

(Brachyteles arachnoides): Southern woolly spider monkey - São Paulo (zoo), Sorocaba

(Lagothrix cana): Gray woolly monkey - Guarulhos (cana), Rio de Janeiro, Volta Redonda, Itatiba, Belo Horizonte, Pomerode, Gramado

Aotidae:
(Aotus infulatus): Feline night monkey - Belo Horizonte
(Aotus trivirgatus): Three-striped night monkey - Sorocaba

Cebidae:
(Cebus albifrons): White-fronted capuchin - Sorocaba
(Cebus olivaceus): Wedge-capped capuchin - São Paulo (zoo)

(Saimiri sciureus): Guianan squirrel monkey - Itatiba, Gramado

(Sapajus apella): Brown capuchin - Rio de Janeiro, Volta Redonda, Sapucaia do Sul, Gramado
(Sapajus flavius): Blonde capuchin - São Paulo (zoo)
(Sapajus nigritus): Black capuchin - wild (nigritus), Sorocaba (cucullatus), Pomerode, Sapucaia do Sul*, Gramado
(Sapajus xanthosternos): Golden-bellied capuchin - Rio de Janeiro, São Paulo (zoo), Sorocaba, Belo Horizonte

Cercopithecidae:
(Chlorocebus pygerythrus): Vervet - Volta Redonda

(Colobus guereza): Mantled guereza - São Paulo (aquarium)

(Erythrocebus patas): Patas monkey - Pomerode

(Macaca fascicularis): Crab-eating macaque - Rio de Janeiro
(Macaca fuscata): Japanese macaque - Volta Redonda, Pomerode
(Macaca mulatta): Rhesus macaque - São Paulo (Instituto Butantan)

(Mandrillus sphinx): Mandrill - Sorocaba, Sapucaia do Sul

(Papio anubis): olive baboon - Pomerode
(Papio hamadryas): Hamadryas baboon - Sorocaba, Sapucaia do Sul

Hominidae:
(Gorilla gorilla): Western gorilla - Belo Horizonte (gorilla)

(Homo sapiens): Human - wild

(Pan troglodytes): Common chimpanzee - São Paulo (zoo) (troglodytes), Sorocaba, Belo Horizonte (troglodytes), Sorocaba, Pomerode, Sapucaia do Sul

(Pongo abelii): Sumatran orangutan - Rio de Janeiro

*The introduced marmosets I have seen were most likely hybrids between Callithrix jacchus and Callithrix penicillata.
*The capuchins I saw in Sapucaia do Sul were unlabeled.
After a year with only two new zoos visited, I can add two more species to my list: the black lemur (Eulemur macaco - seen at Animália Park) and the yellow baboon (Papio cynocephalus - seen backstage in Rio).

I might see a bunch of new taxa next year, if things go right.
 
I've seen 146 species of primates (147 including humans)

Lemur catta
Eulemur albifrons
Eulemur collaris
Eulemur coronatus
Eulemur flavifrons
Eulemur fulvus
Eulemur macaco
Eulemur mongoz
Eulemur rubriventer
Eulemur rufus
Varecia variegata
Varecia rubra
Hapalemur alaotrensis
Hapalemur occidentalis
Prolemur simus
Propithecus coquereli
Propithecus verreauxi
Microcebus ganzhorni
Microcebus lehilahytsara
Microcebus murinus (sensu lato)
Cheirogaleus medius
Daubentonia madagascariensis

Galago moholi
Galago senegalensis
Otolemur crassicaudatus
Otolemur garnettii
Perodicticus potto
Loris lydekkerianus
Nycticebus bengalensis
Nycticebus coucang
Nycticebus pygmaeus

Tarsius tarsier

Callimico goeldii
Leontocebus fuscicollis
Leontocebus lagonotus
Leontocebus nigricollis
Leontocebus weddelli
Leontopithecus chrysomelas
Leontopithecus chrysopygus
Leontopithecus rosalia
Saguinus bicolor
Saguinus imperator
Saguinus labiatus
Saguinus midas
Saguinus mystax
Saguinus oedipus
Callithrix geoffroyi
Callithrix jacchus
Callithrix penicillata
Cebuella niveiventris
Callithrix pygmaea
Mico argentatus
Mico melanurus

Sapajus apella
Sapajus libidinosus
Sapajus xanthosternos
Cebus capucinus (sensu lato)
Cebus imitator
Cebus olivaceus
Saimiri boliviensis
Saimiri oerstedii
Saimiri sciureus
Aotus lemurinus
Aotus azarae
Aotus nancymaae
Aotus trivirgatus
Pithecia pithecia
Chiropotes chiropotes
Chiropotes utahickae
Callicebus cupreus
Cacajao calvus
Alouatta caraya
Alouatta palliata
Alouatta seniculus
Ateles fusciceps
Ateles geoffroyi
Ateles hybridus
Ateles paniscus
Lagothrix lagotricha

Macaca arctoides
Macaca fascicularis
Macaca fuscata
Macaca leonina
Macaca mulatta
Macaca nemestrina
Macaca nigra
Macaca radiata
Macaca silenus
Macaca sinica
Macaca sylvanus
Macaca tonkeana
Papio anubis
Papio hamadryas
Papio papio
Theropithecus gelada
Mandrillus leucophaeus
Mandrillus sphinx
Cercocebus chrysogaster
Cercocebus atys
Cercocebus torquatus
Lophocebus aterrimus
Allochrocebus lhoesti
Cercopithecus albogularis
Cercopithecus ascanius
Cercopithecus campbelli
Cercopithecus lowii
Cercopithecus cephus
Cercopithecus diana
Cercopithecus roloway
Cercopithecus erythrogaster
Cercopithecus hamlyni
Cercopithecus mona
Cercopithecus neglectus
Cercopithecus nictitans
Chlorocebus aethiops
Chlorocebus tantalus
Miopithecus ogouensis
Erythrocebus patas
Allenopithecus nigroviridis

Semnopithecus entellus
Semnopithecus priam
Presbytis robinsoni
Trachypithecus auratus
Trachypithecus francoisi
Trachypithecus obscurus
Trachypithecus phayrei
Pygathrix nemaeus
Nasalis larvatus
Colobus angolensis
Colobus guereza
Colobus polykomos

Nomascus gabriellae
Nomascus leucogenys
Nomascus siki
Hylobates agilis
Hylobates lar
Hylobates moloch
Hylobates muelleri
Hylobates pileatus
Symphalangus syndactylus
Pongo abelii
Pongo pygmaeus
Gorilla beringei
Gorilla gorilla
Pan paniscus
Pan troglodytes
 
I've seen 105 taxa, with none of them being seen wild.

CERCOPITHECIDAE

Allen's Swamp Monkey (Allenopithecus nigroviridis)
L'Hoest's Monkey (Allochrocebus lhoesti)
Schmidt's Red-tailed Monkey (Cercopithecus ascanius schmidti)
Diana Guenon (Cercopithecus diana)
Owl-faced Guenon (Cercopithecus hamlyni)
Stuhlmann's Blue Monkey (Cercopithecus mitis stuhlmanni)
Mona Monkey (Cercopithecus mona)
De Brazza's Monkey (Cercopithecus neglectus)
Eastern Lesser Spot-nosed Monkey (Cercopithecus petaurista petaurista)
Roloway Monkey (Cercopithecus roloway)
Congo Basin Wolf's Monkey (Cercopithecus wolfi wolfi)
Grivet (Chlorocebus aethiops)
Southern Vervet Monkey (Chlorocebus pygerythrus pygerythrus)
Western Patas Monkey (Erythrocebus patas patas)
Northern Talapoin (Miopithecus ogouensis)
Golden-bellied Mangabey (Cercocebus chrysogaster)
Red-capped Mangabey (Cercocebus torquatus)
Northern Black Mangabey (Lophocebus aterrimus aterrimus)
Long-tailed Macaque (Macaca fascicularis)
Japanese Macaque (Macaca fuscata)
Celebes Crested Macaque (Macaca nigra)
Lion-tailed Macaque (Macaca silenus)
Mainland Drill (Mandrillus leucophaeus leucophaeus)
Mandrill (Mandrillus sphinx)
Olive Baboon (Papio anubis)
Hamadryas Baboon (Papio hamadryas)
Guinea Baboon (Papio papio)
Gelada (Theropithecus gelada)
Sclater's Angola Colobus (Colobus angolensis angolensis)
Tanzanian Black-and-white Colobus (Colobus angolensis palliatus)
Mount Kenya Guereza (Colobus guereza kikuyuensis)
Red-shanked Douc Langur (Pygathrix nemaeus)
Golden Snub-nosed Monkey (Rhinopithecus roxellana)
Bengal Sacred Langur (Semnopithecus entellus)
Javan Lutung (Trachypithecus auratus)
Silvered Leaf Monkey (Trachypithecus cristatus cristatus)
François' Lutung (Trachypithecus francoisi)
Dusky Leaf Monkey (Trachypithecus obscurus)

HOMINIDAE
Western Lowland Gorilla (Gorilla gorilla gorilla)
Bonobo (Pan paniscus)
Chimpanzee (Pan troglodytes)
Sumatran Orangutan (Pongo abelii)
Bornean Orangutan (Pongo pygmaeus)

HYLOBATIDAE
Agile Gibbon (Hylobates agilis)
Lar Gibbon (Hylobates lar)
Müller's Gibbon (Hylobates muelleri)
Pileated Gibbon (Hylobates pileatus)
Southern Yellow-cheeked Gibbon (Nomascus gabriellae)
Northern White-cheeked Gibbon (Nomascus leucogenys)
Siamang (Symphalangus syndactylus)

AOTIDAE
Gray-handed Night Monkey (Aotus griseimembra)
Nancy Ma's Night Monkey (Aotus nancymai)

ATELIDAE
Ursine Howler Monkey (Alouatta arctoidea)
Black-and-gold Howler Monkey (Alouatta caraya)
Mantled Howler Monkey (Alouatta palliata mexicana)
Peruvian Spider Monkey (Ateles chamek)
Colombian Brown-headed Spider Monkey (Ateles fusciceps rufiventris)
Nicaraguan Spider Monkey (Ateles geoffroyi geoffroyi)
Mexican Spider Monkey (Ateles geoffroyi vellerosus)
Long-haired Spider Monkey (Ateles hybridus)
Common Woolly Monkey (Lagothrix lagothricha)

CALLITRICHIDAE
Goeldi's Marmoset (Callimico goeldii)
Geoffroy's Tufted-ear Marmoset (Callithrix geoffroyi)
Common Marmoset (Callithrix jacchus)
Wied's Black-tufted-ear Marmoset (Callithrix kuhlii)
Western Pygmy Marmoset (Cebuella pygmaea)
Golden-headed Lion Tamarin (Leontopithecus chrysomelas)
Golden Lion Tamarin (Leontopithecus rosalia)
Geoffroy's Tamarin (Saguinus geoffroyi)
Cotton-headed Tamarin (Saguinus oedipus)
Brazilian Bare-faced Tamarin (Saguinus bicolor)
Golden-handed Tamarin (Saguinus midas)
Black-chinned Emperor Tamarin (Saguinus imperator imperator)
Bearded Emperor Tamarin (Saguinus imperator subgrisescens)

CEBIDAE
White-fronted Capuchin (Cebus albifrons)
White-throated Capuchin (Cebus capucinus)
Brown Capuchin (Sapajus apella)
Bolivian Black-capped Squirrel Monkey (Saimiri boliviensis boliviensis)
Peruvian Black-capped Squirrel Monkey (Saimiri boliviensis peruviensis)
Black-crowned Central American Squirrel Monkey (Saimiri oerstedii oerstedii)
Guianan Squirrel Monkey (Saimiri sciureus)

PITHECIIDAE
Coppery Titi (Plecturocebus cupreus)
Bolivian Gray Titi (Plecturocebus donacophilus)
Red Bald-headed Uakari (Cacajao calvus rubicundus)
Northern Bearded Saki (Chiropotes sagulatus)
White-faced Saki (Pithecia pithecia)

DAUBENTONIIDAE
Aye-aye (Daubentonia madagascariensis)

CHEIROGALEOIDEA
Gray Mouse Lemur (Microcebus murinus)

INDRIIIDAE
Coquerel's Sifaka (Propithecus coquereli)

LEMURIDAE
White-fronted Brown Lemur (Eulemur albifrons)
Collared Brown Lemur (Eulemur collaris)
Crowned Lemur (Eulemur coronatus)
Blue-eyed Black Lemur (Eulemur flavifrons)
Common Brown Lemur (Eulemur fulvus)
Black Lemur (Eulemur macaco)
Mongoose Lemur (Eulemur mongoz)
Ring-tailed Lemur (Lemur catta)
Red Ruffed Lemur (Varecia rubra)
Black-and-white Ruffed Lemur (Varecia variegata variegata)

GALAGIDAE
Southern Lesser Galago (Galago moholi)
Brown Greater Galago (Otolemur crassicaudatus)
Small-eared Greater Galago (Otolemur garnettii)

LORISIDAE
Slow Loris (Nycticebus coucang) sensu lato
Pygmy Slow Loris (Xanthonycticebus pygmaeus)
West African Potto (Perodicticus potto)
 
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