Here is a complete species list for RainForest Adventures Zoo in Sevierville Tennessee. My visit was back in June of this year, but it should still be mostly the same. I visited previously way back in 2015, and other than the Zorilla, it hasn't changed much!
The zoo is mostly contained within a single building with a petting zoo and a couple enclosures outside in the back. Exhibit quality was ok, nothing too terrible and pretty much every enclosure had good substrates, and the animals looked healthy.
(m/r/a) = 'lifer'
(SNS) = Signed, Not Seen
Two entry enclosures
1. Red-fronted Brown Lemur (Eulemur rufifrons) (m)
2. Brown Lemur (Eulemur fuscus) (m)
Hallway of herp terrariums
3. Burmese Python (Python bivittatus)
4. Reticulated python (Malayopython reticulatus)
5. Green basilisk (Basiliscus plumifrons)
6. Sudan Plated Lizard (Broadleysaurus major) (r)
7. California kingsnake (Lampropeltis getula californiae) (r)
8. Red eyed tree frog (Agalychnis callidryas) (SNS)
9. Marine toad (Rhinella marina)
10. Leopard Gecko (Eublepharis macularius)
11. Sinaloan milksnake (Lampropeltis triangulum sinaloae) (SNS)
12. New Caledonia giant gecko (Rhacodactylus leachianus)
13. Cotton-top Tamarin (Saguinus oedipus)
14. Western Hognose Snake (Heterodon nasicus)
15. Egyptian Fan-footed Gecko (Ptyodactylus guttatus) (r)
16. Snake-necked turtle (Chelodina sp.), Snake-necked turtle (Emydura sp.)
18. Chilean Rose Hair Tarantula (Grammostola rosea)
19. Grey-banded kingsnake (Lampropeltis alterna)
20. Red-headed Agama (Agama agama) (r)
21. Veiled chameleon (Chamaeleo calyptratus)
22. Ball Python (Python regius)
23. Sahara mastigure (Uromastyx geyri) (r)
Small wall-cutout terrariums
24. Roach sp.
25. Gecko sp.
26. Boa sp.
Larger enclosures
27. Kookaburra (Dacelo novaeguineae)
28. Boa constrictor (Boa constrictor)
29. Ring-Tailed Lemur (Lemur catta)
30. Hahn’s Macaw (Diopsittaca nobilis nobilis) (b)
Outdoor section
(Also domestics like sheep, etc., I didn't really take note)
Outdoor small paddock
31. African Spur-thigh Tortoise (Centrochelys sulcata)
Inside a meshed walk-through area
32. Blue-and-yellow macaw (Ara ararauna)
33. Golden Pheasant (Chrysolophus pictus), tortoise sp.
On an outdoor patio
34. Serval (Leptailurus serval) (SNS)
35. Blue eared-pheasant (Crossoptilon auritum) (b)
36. Black-capped Capuchin (Sapajus apella) (m)
Back indoors
Another hallway with more enclosures
37. Agouti (Dasyprocta leporina)
38. Common water monitor (Varanus salvator)
39. Fat-tail Gecko
40. Kenyan Sand Boa (Eryx colubrinus)
41. Degu (Octodon degus)
42. Crocodile monitor (Varanus salvadorii)
43. Argentine black and white tegu (Salvator merianae)
Another hallway with smaller enclosures across from the long one for Kusimanse
44. Umbrella cockatoo (Cacatua alba) (b)
45. Blue-tongued skink (Tiliqua scincoides)
46. Carpet Python (Morelia spilota)
47. Common Kusimanse (Crossarchus obscurus) (m)
48. Sugar Gilder (Petaurus breviceps) (m)
49. Central bearded dragon (Pogona vitticeps)
Larger enclosures for small primates and Caiman
50. Common Marmoset (Callithrix jacchus) (m)
51. Squirrel Monkey (Saimiri sciureus)
52. Spectacled Caiman (Caiman crocodilus)
Atrium for Cockatoos on sticks
53. Moluccan Cockatoo (Cacatua molucanensis) (b)
54. Sulphur Crested Cockatoo (Cacatua galerita) (b)
Large enclosure off to the side
55. Golden-headed lion tamarin (Leontopithecus chrysomelas)
Wall of terrariums
56. Four-toed hedgehog (Atelerix albiventris) (m)
57. Boelen's python (Simalia boeleni)
58. Emerald tree skink/ green tree skink (Lamprolepis smaragdina)
59. Scheltopusik (Pseudopus apodus)
60. 'Mexican milk snake'
61. Red-Footed Tortoise (Chelonoidis carbonarius)
62. Solomon island skink (Corucia zebrata)
63. African Bullfrog (Pyxicephalus adspersus) (a)
64. Anthony’s dart frog (Epipedobates anthonyi)
Large enclosure for Binturong and medium for Mangrove Monitor
65. Binturong (Arctictis binturong)
66. Mangrove Monitor (Varanus indicus) (r)
'A Rats Tale'
67. Fancy rat
68. Domestic mouse
69. Domestic ferret
70. Guinea pig
Wall of nicely planted terrariums
71. Crested gecko (Correlophus ciliatus)
72. Emerald Swift (Sceloporus malachiticus) (r)
73. Axolotl (Ambystoma mexicanum)
74. Western bearded anole (Anolis barbatus)
A series of large enclosures with moc-rock back walls
75. Rock hyrax (Procavia capensis)
76. Cape Porcupine (Hystrix africaeaustralis) (m)
77. Rosy-faced Lovebird (Agapornis roseicollis), Lovebird hybirds (Agapornis x Agapornis sp.)
78. Keel-billed Toucan (Ramphastos sulfuratus)
The zoo is mostly contained within a single building with a petting zoo and a couple enclosures outside in the back. Exhibit quality was ok, nothing too terrible and pretty much every enclosure had good substrates, and the animals looked healthy.
(m/r/a) = 'lifer'
(SNS) = Signed, Not Seen
Two entry enclosures
1. Red-fronted Brown Lemur (Eulemur rufifrons) (m)
2. Brown Lemur (Eulemur fuscus) (m)
Hallway of herp terrariums
3. Burmese Python (Python bivittatus)
4. Reticulated python (Malayopython reticulatus)
5. Green basilisk (Basiliscus plumifrons)
6. Sudan Plated Lizard (Broadleysaurus major) (r)
7. California kingsnake (Lampropeltis getula californiae) (r)
8. Red eyed tree frog (Agalychnis callidryas) (SNS)
9. Marine toad (Rhinella marina)
10. Leopard Gecko (Eublepharis macularius)
11. Sinaloan milksnake (Lampropeltis triangulum sinaloae) (SNS)
12. New Caledonia giant gecko (Rhacodactylus leachianus)
13. Cotton-top Tamarin (Saguinus oedipus)
14. Western Hognose Snake (Heterodon nasicus)
15. Egyptian Fan-footed Gecko (Ptyodactylus guttatus) (r)
16. Snake-necked turtle (Chelodina sp.), Snake-necked turtle (Emydura sp.)
https://www.zoochat.com/community/media/toad-headed-turtle-sp.766738/full and https://www.zoochat.com/community/media/snake-necked-turtle-sp.766737/full if you are curious, could be Northern Red-faced Turtle (Emydura australis) which only has one ZTL record
17. Gila monster (Heloderma suspectum)18. Chilean Rose Hair Tarantula (Grammostola rosea)
19. Grey-banded kingsnake (Lampropeltis alterna)
20. Red-headed Agama (Agama agama) (r)
21. Veiled chameleon (Chamaeleo calyptratus)
22. Ball Python (Python regius)
23. Sahara mastigure (Uromastyx geyri) (r)
Small wall-cutout terrariums
24. Roach sp.
25. Gecko sp.
26. Boa sp.
Larger enclosures
27. Kookaburra (Dacelo novaeguineae)
28. Boa constrictor (Boa constrictor)
29. Ring-Tailed Lemur (Lemur catta)
30. Hahn’s Macaw (Diopsittaca nobilis nobilis) (b)
Outdoor section
(Also domestics like sheep, etc., I didn't really take note)
Outdoor small paddock
31. African Spur-thigh Tortoise (Centrochelys sulcata)
Inside a meshed walk-through area
32. Blue-and-yellow macaw (Ara ararauna)
33. Golden Pheasant (Chrysolophus pictus), tortoise sp.
On an outdoor patio
34. Serval (Leptailurus serval) (SNS)
35. Blue eared-pheasant (Crossoptilon auritum) (b)
36. Black-capped Capuchin (Sapajus apella) (m)
Back indoors
Another hallway with more enclosures
37. Agouti (Dasyprocta leporina)
38. Common water monitor (Varanus salvator)
39. Fat-tail Gecko
40. Kenyan Sand Boa (Eryx colubrinus)
41. Degu (Octodon degus)
42. Crocodile monitor (Varanus salvadorii)
43. Argentine black and white tegu (Salvator merianae)
Another hallway with smaller enclosures across from the long one for Kusimanse
44. Umbrella cockatoo (Cacatua alba) (b)
45. Blue-tongued skink (Tiliqua scincoides)
46. Carpet Python (Morelia spilota)
47. Common Kusimanse (Crossarchus obscurus) (m)
48. Sugar Gilder (Petaurus breviceps) (m)
49. Central bearded dragon (Pogona vitticeps)
Larger enclosures for small primates and Caiman
50. Common Marmoset (Callithrix jacchus) (m)
51. Squirrel Monkey (Saimiri sciureus)
52. Spectacled Caiman (Caiman crocodilus)
Atrium for Cockatoos on sticks
53. Moluccan Cockatoo (Cacatua molucanensis) (b)
54. Sulphur Crested Cockatoo (Cacatua galerita) (b)
Large enclosure off to the side
55. Golden-headed lion tamarin (Leontopithecus chrysomelas)
Wall of terrariums
56. Four-toed hedgehog (Atelerix albiventris) (m)
57. Boelen's python (Simalia boeleni)
58. Emerald tree skink/ green tree skink (Lamprolepis smaragdina)
59. Scheltopusik (Pseudopus apodus)
60. 'Mexican milk snake'
61. Red-Footed Tortoise (Chelonoidis carbonarius)
62. Solomon island skink (Corucia zebrata)
63. African Bullfrog (Pyxicephalus adspersus) (a)
64. Anthony’s dart frog (Epipedobates anthonyi)
Large enclosure for Binturong and medium for Mangrove Monitor
65. Binturong (Arctictis binturong)
66. Mangrove Monitor (Varanus indicus) (r)
'A Rats Tale'
67. Fancy rat
68. Domestic mouse
69. Domestic ferret
70. Guinea pig
Wall of nicely planted terrariums
71. Crested gecko (Correlophus ciliatus)
72. Emerald Swift (Sceloporus malachiticus) (r)
73. Axolotl (Ambystoma mexicanum)
74. Western bearded anole (Anolis barbatus)
A series of large enclosures with moc-rock back walls
75. Rock hyrax (Procavia capensis)
76. Cape Porcupine (Hystrix africaeaustralis) (m)
77. Rosy-faced Lovebird (Agapornis roseicollis), Lovebird hybirds (Agapornis x Agapornis sp.)
78. Keel-billed Toucan (Ramphastos sulfuratus)