Reptile Orders and Families -- How many have you seen?

Najade

Najade

Well-Known Member
5+ year member
I was a bit bored so I thought I'd give everyone interested in the herp side of things something to do in keeping with the bird and mammal threads.

Of course there's always a bit of fluctuation in what is considered a family or not but I hope I got all the currently recognized families in. If not let me know.

I'd suggest marking the species seen only in captivity by underlining them; the ones seen only in the wild in bold; and those seen in both captivity and in the wild by doing both (as in the previous threads).

I reckon everyone will have seen at least one species of every order, while families is gonna be a bit more difficult.^^

Order Testudines
Order Rhynchocephalia
Order Squamata
Order Crocodilia
 
Last edited:
Order Testudines (turtles, tortoises, terrapins)
Family Chelydridae (snapping turtles)
Family Emydidae (pond turtles, terrapins, sliders)
Family Testudinidae (tortoises)
Family Geoemydidae (asian river turtles and allies)
Family Platysternidae (big-headed turtle)
Family Carettochelyidae (pig-nosed turtle)
Family Trionychidae (softshell turtles)
Family Dermatemydidae (central american river turtle)
Family Kinosternidae (mud turtles, musk turtles)
Family Cheloniidae (sea turtles)
Family Dermochelyidae (leatherback sea turtle)
Family Chelidae (austro-american sideneck turtles)
Family Pelomedusidae (afro-american sideneck turtles)
Family Podocnemididae (madagascan big-headed turtle, american sideneck river turtles)


Order Rhynchocephalia (“beak-heads”)
Family Sphenodontidae (tuatara)


Order Squamata (scaled reptiles)
Family Dibamidae (blind lizards)
Family Gekkonidae (geckos)
Family Phyllodactylidae
Family Spaerodactylidae
Family Eublepharidae (eyelid geckos)
Family Pygopodidae (legless lizards)
Family Diplodactylidae (stone geckos)
Family Carphodactylidae (knob-tailed geckos)
Family Cordylidae (spinytail lizards)
Family Gerrhosauridae (plated lizards)
Family Scincidae (skinks)
Family Xantusiidae (night lizards)
Family Alopoglossidae
Family Gymnophthalmidae (spectacled lizards)
Family Teiidae (whiptails)
Family Lacertidae (true lizards)
Family Rhineuridae (north american worm lizards)
Family Amphisbaenidae (tropical worm lizards)
Family Trogonophidae (shorthead worm lizards)
Family Bipedidae (two-legged worm lizards)
Family Cadeidae (cuban worm lizards)
Family Blanidae (mediterranean worm lizards)
Family Agamidae (agamas)
Family Chamaeleonidae (chameleons)
Family Corytophanidae (casquehead lizards)
Family Crotaphytidae (collared lizards, leopard lizards)
Family Dactyloidae (anoles)
Family Hoplocercidae (wood lizards)
Family Iguanidae (iguanas)
Family Leiocephalidae (curlytail lizards)
Family Leiosauridae (leiosaurs)
Family Liolaemidae (south american swifts)
Family Opluridae (madagascan iguanas)
Family Phrynosomatidae (horned lizards and allies)
Family Polychrotidae (bush anoles)
Family Tropiduridae (neotropical ground lizards)
Family Anguidae (glass lizards and allies)
Family Anniellidae (american legless lizards)
Family Diploglossidae (galliwasps)
Family Xenosauridae (knob-scaled lizards)
Family Helodermatidae (gila monsters)
Family Shinisauridae (chinese crocodile lizard)
Family Lanthanotidae (earless monitor lizard)
Family Varanidae (monitor lizards)

Family Acrochordidae (file snakes)
Family Aniliidae (false coral snake)
Family Anomochilidae (dwarf pipe snakes)
Family Atractaspididae (stiletto snakes)
Family Boidae (boas)
Family Bolyeriidae (round island boa)
Family Colubridae (colubrids)
Family Cyclocoridae
Family Cylindrophiidae (asian pipe snakes)
Family Elapidae (elapids)
Family Homalopsidae (mudsnakes)
Family Lamprophiidae (lamprophiids)
Family Loxocemidae (mexican python)
Family Pareidae
Family Prosymnidae (african shovel-snout snakes)
Family Psammophiidae
Family Pseudaspididae
Family Pseudoxyrhophiidae (african sand snakes and relatives)
Family Pythonidae (pythons)
Family Tropidophiidae (dwarf boas)
Family Uropeltidae (shield-tailed snakes)
Family Viperidae (vipers)
Family Xenodermidae
Family Xenopeltidae (sunbeam snakes)
Family Xenophidiidae (spinejaw snakes)
Family Anomalepididae (primitive blind snakes)
Family Gerrhopilidae (indo-malayan blind snakes)
Family Leptotyphlopidae (slender blind snakes)
Family Typhlopidae (typical blind snakes)
Family Xenotyphlopidae (malagasy blind snakes)


Order Crocodilia (crocodilians)
Family Crocodylidae (crocodiles)
Family Alligatoridae (alligators, caimans)
Family Gavialidae (gharials)
 
I'll start us off then^^
As always my memory is a bit spotty on some of the captive stuff I may or may not have seen in my time as I don't keep lists and I'm not an expert on reptiles so I don't always know if something is a new family when I go in unprepared.

Order Testudines
Order Rhynchocephalia
Order Squamata
Order Crocodilia

-----------------------------------
Families:

Order Testudines (turtles, tortoises, terrapins)
Family Chelydridae (snapping turtles)
Family Emydidae (pond turtles, terrapins, sliders)
Family Testudinidae (tortoises)
Family Geoemydidae (asian river turtles and allies)
Family Platysternidae (big-headed turtle)*
Family Carettochelyidae (pig-nosed turtle)
Family Trionychidae (softshell turtles)
Family Dermatemydidae (central american river turtle)
Family Kinosternidae (mud turtles, musk turtles)*
Family Cheloniidae (sea turtles)
Family Dermochelyidae (leatherback sea turtle)
Family Chelidae (austro-american sideneck turtles)
Family Pelomedusidae (afro-american sideneck turtles)*
Family Podocnemididae (madagascan big-headed turtle, american sideneck river turtles)


Order Rhynchocephalia (“beak-heads”)
Family Sphenodontidae (tuatara)


Order Squamata (scaled reptiles)
Family Dibamidae (blind lizards)
Family Gekkonidae (geckos)
Family Phyllodactylidae*
Family Sphaerodactylidae*
Family Eublepharidae (eyelid geckos)
Family Pygopodidae (legless lizards)
Family Diplodactylidae (stone geckos)
Family Carphodactylidae (knob-tailed geckos)
Family Cordylidae (spinytail lizards)
Family Gerrhosauridae (plated lizards)*
Family Scincidae (skinks)
Family Xantusiidae (night lizards)*
Family Alopoglossidae
Family Gymnophthalmidae (spectacled lizards)
Family Teiidae (whiptails)
Family Lacertidae (true lizards)
Family Rhineuridae (north american worm lizards)
Family Amphisbaenidae (tropical worm lizards)
Family Trogonophidae (shorthead worm lizards)
Family Bipedidae (two-legged worm lizards)
Family Cadeidae (cuban worm lizards)
Family Blanidae (mediterranean worm lizards)
Family Agamidae (agamas)
Family Chamaeleonidae (chameleons)
Family Corytophanidae (casquehead lizards)
Family Crotaphytidae (collared lizards, leopard lizards)
Family Dactyloidae (anoles)
Family Hoplocercidae (wood lizards)
Family Iguanidae (iguanas)
Family Leiocephalidae (curlytail lizards)*
Family Leiosauridae (leiosaurs)
Family Liolaemidae (south american swifts)
Family Opluridae (madagascan iguanas)
Family Phrynosomatidae (horned lizards and allies)
Family Polychrotidae (bush anoles)*
Family Tropiduridae (neotropical ground lizards)
Family Anguidae (glass lizards and allies)
Family Anniellidae (american legless lizards)
Family Diploglossidae (galliwasps)
Family Xenosauridae (knob-scaled lizards)*
Family Helodermatidae (gila monsters)
Family Shinisauridae (chinese crocodile lizard)
Family Lanthanotidae (earless monitor lizard)
Family Varanidae (monitor lizards)

Family Acrochordidae (file snakes)
Family Aniliidae (false coral snake)
Family Anomochilidae (dwarf pipe snakes)
Family Atractaspididae (stiletto snakes)
Family Boidae (boas)
Family Bolyeriidae (round island boa)
Family Colubridae (colubrids)
Family Cyclocoridae
Family Cylindrophiidae (asian pipe snakes)
Family Elapidae (elapids)
Family Homalopsidae (mudsnakes)
Family Lamprophiidae (lamprophiids)*
Family Loxocemidae (mexican python)
Family Pareidae
Family Prosymnidae (african shovel-snout snakes)
Family Psammophiidae
Family Pseudaspididae
Family Pseudoxyrhophiidae (african sand snakes and relatives)
Family Pythonidae (pythons)
Family Tropidophiidae (dwarf boas)*
Family Uropeltidae (shield-tailed snakes)
Family Viperidae (vipers)
Family Xenodermidae
Family Xenopeltidae (sunbeam snakes)
Family Xenophidiidae (spinejaw snakes)
Family Anomalepididae (primitive blind snakes)
Family Gerrhopilidae (indo-malayan blind snakes)
Family Leptotyphlopidae (slender blind snakes)
Family Typhlopidae (typical blind snakes)
Family Xenotyphlopidae (malagasy blind snakes)


Order Crocodilia (crocodilians)
Family Crocodylidae (crocodiles)
Family Alligatoridae (alligators, caimans)
Family Gavialidae (gharials)

---------
* not sure if seen in captivity, but very likely
 
Could be some families I miss, but I'm pretty sure this list is accurate enough.

Order Testudines (turtles, tortoises, terrapins)
Family Chelydridae (snapping turtles)
Family Emydidae (pond turtles, terrapins, sliders)
Family Testudinidae (tortoises)
Family Geoemydidae (asian river turtles and allies)
Family Platysternidae (big-headed turtle)
Family Carettochelyidae (pig-nosed turtle)
Family Trionychidae (softshell turtles)
Family Dermatemydidae (central american river turtle)
Family Kinosternidae (mud turtles, musk turtles)
Family Cheloniidae (sea turtles)
Family Dermochelyidae (leatherback sea turtle)
Family Chelidae (austro-american sideneck turtles)
Family Pelomedusidae (afro-american sideneck turtles)
Family Podocnemididae (madagascan big-headed turtle, american sideneck river turtles)


Order Rhynchocephalia (“beak-heads”)
Family Sphenodontidae (tuatara)


Order Squamata (scaled reptiles)
Family Dibamidae (blind lizards)
Family Gekkonidae (geckos)
Family Phyllodactylidae
Family Spaerodactylidae
Family Eublepharidae (eyelid geckos)
Family Pygopodidae (legless lizards)
Family Diplodactylidae (stone geckos)
Family Carphodactylidae (knob-tailed geckos)
Family Cordylidae (spinytail lizards)
Family Scincidae (skinks)
Family Xantusiidae (night lizards)
Family Alopoglossidae
Family Gymnophthalmidae (spectacled lizards)
Family Teiidae (whiptails)
Family Lacertidae (true lizards)
Family Rhineuridae (north american worm lizards)
Family Amphisbaenidae (tropical worm lizards)
Family Trogonophidae (shorthead worm lizards)
Family Bipedidae (two-legged worm lizards)
Family Cadeidae (cuban worm lizards)
Family Blanidae (mediterranean worm lizards)
Family Agamidae (agamas)
Family Chamaeleonidae (chameleons)
Family Corytophanidae (casquehead lizards)
Family Crotaphytidae (collared lizards, leopard lizards)
Family Dactyloidae (anoles)
Family Hoplocercidae (wood lizards)
Family Iguanidae (iguanas)
Family Leiocephalidae (curlytail lizards)
Family Leiosauridae (leiosaurs)
Family Liolaemidae (south american swifts)
Family Opluridae (madagascan iguanas)
Family Phrynosomatidae (horned lizards and allies)
Family Polychrotidae (bush anoles)
Family Tropiduridae (neotropical ground lizards)
Family Anguidae (glass lizards and allies)
Family Anniellidae (american legless lizards)
Family Diploglossidae (galliwasps)
Family Xenosauridae (knob-scaled lizards)
Family Helodermatidae (gila monsters)
Family Shinisauridae (chinese crocodile lizard)
Family Lanthanotidae (earless monitor lizard)
Family Varanidae (monitor lizards)

Family Acrochordidae (file snakes)
Family Aniliidae (false coral snake)
Family Anomochilidae (dwarf pipe snakes)
Family Atractaspididae (stiletto snakes)
Family Boidae (boas)
Family Bolyeriidae (round island boa)
Family Colubridae (colubrids)
Family Cyclocoridae
Family Cylindrophiidae (asian pipe snakes)
Family Elapidae (elapids)
Family Homalopsidae (mudsnakes)
Family Lamprophiidae (lamprophiids)
Family Loxocemidae (mexican python)
Family Pareidae
Family Prosymnidae (african shovel-snout snakes)
Family Psammophiidae
Family Pseudaspididae
Family Pseudoxyrhophiidae (african sand snakes and relatives)
Family Pythonidae (pythons)
Family Tropidophiidae (dwarf boas)
Family Uropeltidae (shield-tailed snakes)
Family Viperidae (vipers)
Family Xenodermidae
Family Xenopeltidae (sunbeam snakes)
Family Xenophidiidae (spinejaw snakes)
Family Anomalepididae (primitive blind snakes)
Family Gerrhopilidae (indo-malayan blind snakes)
Family Leptotyphlopidae (slender blind snakes)
Family Typhlopidae (typical blind snakes)
Family Xenotyphlopidae (malagasy blind snakes)


Order Crocodilia (crocodilians)
Family Crocodylidae (crocodiles)
Family Alligatoridae (alligators, caimans)
Family Gavialidae (gharials)
 
I kept meaning to post on this thread but forgetting. Anyway, here is my admittedly meager reptile list. Hopefully it will encourage others to post their’s.

Order Testudines (turtles, tortoises, terrapins)
Family Chelydridae (snapping turtles)
Family Emydidae (pond turtles, terrapins, sliders)
Family Testudinidae (tortoises)
Family Geoemydidae (asian river turtles and allies)
Family Platysternidae (big-headed turtle)
Family Carettochelyidae (pig-nosed turtle)
Family Trionychidae (softshell turtles)
Family Dermatemydidae (central american river turtle)
Family Kinosternidae (mud turtles, musk turtles)
Family Cheloniidae (sea turtles)
Family Dermochelyidae (leatherback sea turtle)
Family Chelidae (austro-american sideneck turtles)
Family Pelomedusidae (afro-american sideneck turtles)
Family Podocnemididae (madagascan big-headed turtle, american sideneck river turtles)


Order Rhynchocephalia (“beak-heads”)
Family Sphenodontidae (tuatara)


Order Squamata (scaled reptiles)
Family Dibamidae (blind lizards)
Family Gekkonidae (geckos)
Family Phyllodactylidae
Family Spaerodactylidae
Family Eublepharidae (eyelid geckos)
Family Pygopodidae (legless lizards)
Family Diplodactylidae (stone geckos)
Family Carphodactylidae (knob-tailed geckos)
Family Cordylidae (spinytail lizards)
Family Gerrhosauridae (plated lizards)
Family Scincidae (skinks)
Family Xantusiidae (night lizards)
Family Alopoglossidae
Family Gymnophthalmidae (spectacled lizards)
Family Teiidae (whiptails)
Family Lacertidae (true lizards) (Apparently snake-eyed lizards are lacertids. I always thought they were skinks.)
Family Rhineuridae (north american worm lizards)
Family Amphisbaenidae (tropical worm lizards)
Family Trogonophidae (shorthead worm lizards)
Family Bipedidae (two-legged worm lizards)
Family Cadeidae (cuban worm lizards)
Family Blanidae (mediterranean worm lizards)
Family Agamidae (agamas)
Family Chamaeleonidae (chameleons)
Family Corytophanidae (casquehead lizards)
Family Crotaphytidae (collared lizards, leopard lizards)
Family Dactyloidae (anoles)
Family Hoplocercidae (wood lizards)
Family Iguanidae (iguanas)
Family Leiocephalidae (curlytail lizards)
Family Leiosauridae (leiosaurs)
Family Liolaemidae (south american swifts)
Family Opluridae (madagascan iguanas)
Family Phrynosomatidae (horned lizards and allies)
Family Polychrotidae (bush anoles)
Family Tropiduridae (neotropical ground lizards)
Family Anguidae (glass lizards and allies)
Family Anniellidae (american legless lizards)
Family Diploglossidae (galliwasps)
Family Xenosauridae (knob-scaled lizards)
Family Helodermatidae (gila monsters)
Family Shinisauridae (chinese crocodile lizard)
Family Lanthanotidae (earless monitor lizard)
Family Varanidae (monitor lizards)

Family Acrochordidae (file snakes)
Family Aniliidae (false coral snake)
Family Anomochilidae (dwarf pipe snakes)
Family Atractaspididae (stiletto snakes)
Family Boidae (boas)
Family Bolyeriidae (round island boa)
Family Colubridae (colubrids)
Family Cyclocoridae
Family Cylindrophiidae (asian pipe snakes)
Family Elapidae (elapids)
Family Homalopsidae (mudsnakes)
Family Lamprophiidae (lamprophiids)
Family Loxocemidae (mexican python)
Family Pareidae
Family Prosymnidae (african shovel-snout snakes)
Family Psammophiidae
Family Pseudaspididae
Family Pseudoxyrhophiidae (african sand snakes and relatives)
Family Pythonidae (pythons)
Family Tropidophiidae (dwarf boas)
Family Uropeltidae (shield-tailed snakes)
Family Viperidae (vipers)
Family Xenodermidae
Family Xenopeltidae (sunbeam snakes)
Family Xenophidiidae (spinejaw snakes)
Family Anomalepididae (primitive blind snakes)
Family Gerrhopilidae (indo-malayan blind snakes)
Family Leptotyphlopidae (slender blind snakes)
Family Typhlopidae (typical blind snakes) (I think I have seen these, but at the time I couldn’t tell if they were invertebrate worms or blind snakes.)
Family Xenotyphlopidae (malagasy blind snakes)


Order Crocodilia (crocodilians)
Family Crocodylidae (crocodiles)
Family Alligatoridae (alligators, caimans)
Family Gavialidae (gharials)
 
I miss an entire order, Rhynchocephalia (seen the enclosure but not the inhabitant). From the others you mention I've seen the next families:

Family Chelydridae (snapping turtles) (INCLUDING "Platysternidae")
Family Emydidae (pond turtles, terrapins, sliders)
Family Testudinidae (tortoises)
Family Geoemydidae (asian river turtles and allies)
Family Carettochelyidae (pig-nosed turtle)
Family Trionychidae (softshell turtles)
Family Dermatemydidae (central american river turtle)
Family Kinosternidae (mud turtles, musk turtles)
Family Cheloniidae (sea turtles)
Family Dermochelyidae (leatherback sea turtle)
Family Chelidae (austro-american sideneck turtles)
Family Pelomedusidae (afro-american sideneck turtles) (INCLUDING "Podocnemididae")


Order Rhynchocephalia (“beak-heads”)
Family Sphenodontidae (tuatara)


Order Squamata (scaled reptiles)
Family Dibamidae (blind lizards)
Family Gekkonidae (geckos) (INCLUDING "Phyllodactylidae", "Sphaerodactylidae", "Eublepharidae", "Diplodactylidae", "Carphodactylidae")
Family Pygopodidae (legless lizards)
Family Cordylidae (spinytail lizards)
Family Gerrhosauridae (plated lizards)
Family Scincidae (skinks)
Family Xantusiidae (night lizards)
Family Gymnophthalmidae (spectacled lizards) (INCLUDING "Alopoglossidae")
Family Teiidae (whiptails)
Family Lacertidae (true lizards)
Family Amphisbaenidae (tropical worm lizards) (INCLUDING "Rhineuridae", "Trogonophidae", "Bipedidae", "Cadeidae", "Blanidae")
Family Agamidae (agamas)
Family Chamaeleonidae (chameleons)
Family Iguanidae (iguanas) (INCLUDING "Corytophanidae", "Crotaphytidae", "Dactyloidae", "Hoplocercidae", "Leiocephalidae", "Leiosauridae", "Liolaemidae", "Opluridae", "Phrynosomatidae", "Polychrotidae" (in bold if including "Dactyloidae"), "Tropiduridae")
Family Anguidae (glass lizards and allies) (including "Diploglossidae")
Family Anniellidae (american legless lizards)
Family Xenosauridae (knob-scaled lizards)
Family Helodermatidae (gila monsters)
Family Shinisauridae (chinese crocodile lizard)
Family Varanidae (monitor lizards) (including "Lanthanotidae")

Family Acrochordidae (file snakes)
Family Aniliidae (false coral snake)
Family Anomochilidae (dwarf pipe snakes)
Family Atractaspididae (stiletto snakes)
Family Boidae (boas) (including "Bolyeriidae", "Cylindrophiidae", "Loxocemidae", "Pythonidae", "Tropidophiidae", "Uropeltidae", and "Xenopeltidae")
Family Colubridae (colubrids) (including "Cyclocoridae", "Homalopsidae", "Lamphrophididae", (in bold if including "Psammophididae"), "Pareidae", "Prosymnidae", "Psammophididae", "Pseudaspididae", "Pseudoxyrhophididae", and "Xenodermidae")
Family Elapidae (elapids)
Family Viperidae (vipers)
Family Xenophidiidae (spinejaw snakes)
Family Anomalepididae (primitive blind snakes)
Family Typhlopidae (typical blind snakes) (including "Gerrhopilidae", "Leptotyphlopidae" and "Xenotyphlopidae")

Order Crocodilia (crocodilians)
Family Crocodylidae (crocodiles)
Family Alligatoridae (alligators, caimans)
Family Gavialidae (gharials)
 
Kakapo said:
I miss an entire order, Rhynchocephalia (seen the enclosure but not the inhabitant). From the others you mention I've seen the next families:

Family Chelydridae (snapping turtles) (INCLUDING "Platysternidae")
Family Emydidae (pond turtles, terrapins, sliders)
Family Testudinidae (tortoises)
Family Geoemydidae (asian river turtles and allies)
Family Carettochelyidae (pig-nosed turtle)
Family Trionychidae (softshell turtles)
Family Dermatemydidae (central american river turtle)
Family Kinosternidae (mud turtles, musk turtles)
Family Cheloniidae (sea turtles)
Family Dermochelyidae (leatherback sea turtle)
Family Chelidae (austro-american sideneck turtles)
Family Pelomedusidae (afro-american sideneck turtles) (INCLUDING "Podocnemididae")


Order Rhynchocephalia (“beak-heads”)
Family Sphenodontidae (tuatara)


Order Squamata (scaled reptiles)
Family Dibamidae (blind lizards)
Family Gekkonidae (geckos) (INCLUDING "Phyllodactylidae", "Sphaerodactylidae", "Eublepharidae", "Diplodactylidae", "Carphodactylidae")
Family Pygopodidae (legless lizards)
Family Cordylidae (spinytail lizards)
Family Gerrhosauridae (plated lizards)
Family Scincidae (skinks)
Family Xantusiidae (night lizards)
Family Gymnophthalmidae (spectacled lizards) (INCLUDING "Alopoglossidae")
Family Teiidae (whiptails)
Family Lacertidae (true lizards)
Family Amphisbaenidae (tropical worm lizards) (INCLUDING "Rhineuridae", "Trogonophidae", "Bipedidae", "Cadeidae", "Blanidae")
Family Agamidae (agamas)
Family Chamaeleonidae (chameleons)
Family Iguanidae (iguanas) (INCLUDING "Corytophanidae", "Crotaphytidae", "Dactyloidae", "Hoplocercidae", "Leiocephalidae", "Leiosauridae", "Liolaemidae", "Opluridae", "Phrynosomatidae", "Polychrotidae" (in bold if including "Dactyloidae"), "Tropiduridae")
Family Anguidae (glass lizards and allies) (including "Diploglossidae")
Family Anniellidae (american legless lizards)
Family Xenosauridae (knob-scaled lizards)
Family Helodermatidae (gila monsters)
Family Shinisauridae (chinese crocodile lizard)
Family Varanidae (monitor lizards) (including "Lanthanotidae")

Family Acrochordidae (file snakes)
Family Aniliidae (false coral snake)
Family Anomochilidae (dwarf pipe snakes)
Family Atractaspididae (stiletto snakes)
Family Boidae (boas) (including "Bolyeriidae", "Cylindrophiidae", "Loxocemidae", "Pythonidae", "Tropidophiidae", "Uropeltidae", and "Xenopeltidae")
Family Colubridae (colubrids) (including "Cyclocoridae", "Homalopsidae", "Lamphrophididae", (in bold if including "Psammophididae"), "Pareidae", "Prosymnidae", "Psammophididae", "Pseudaspididae", "Pseudoxyrhophididae", and "Xenodermidae")
Family Elapidae (elapids)
Family Viperidae (vipers)
Family Xenophidiidae (spinejaw snakes)
Family Anomalepididae (primitive blind snakes)
Family Typhlopidae (typical blind snakes) (including "Gerrhopilidae", "Leptotyphlopidae" and "Xenotyphlopidae")

Order Crocodilia (crocodilians)
Family Crocodylidae (crocodiles)
Family Alligatoridae (alligators, caimans)
Family Gavialidae (gharials)
Click to expand...
Which ones wild and which ones captive?
 
Well no longer able to edit so please delete my former post. This one is the valid one

Family Chelydridae (snapping turtles) (INCLUDING "Platysternidae")
Family Emydidae (pond turtles, terrapins, sliders)
Family Testudinidae (tortoises)
Family Geoemydidae (asian river turtles and allies)
Family Carettochelyidae (pig-nosed turtle)
Family Trionychidae (softshell turtles)
Family Dermatemydidae (central american river turtle)
Family Kinosternidae (mud turtles, musk turtles)
Family Cheloniidae (sea turtles)
Family Dermochelyidae (leatherback sea turtle)
Family Chelidae (austro-american sideneck turtles)
Family Pelomedusidae (afro-american sideneck turtles) (INCLUDING "Podocnemididae")


Order Rhynchocephalia (“beak-heads”)
Family Sphenodontidae (tuatara)


Order Squamata (scaled reptiles)
Family Dibamidae (blind lizards)
Family Gekkonidae (geckos) (INCLUDING "Phyllodactylidae", "Sphaerodactylidae", "Eublepharidae", "Diplodactylidae", "Carphodactylidae")
Family Pygopodidae (legless lizards)
Family Cordylidae (spinytail lizards)
Family Gerrhosauridae (plated lizards)
Family Scincidae (skinks)
Family Xantusiidae (night lizards)
Family Gymnophthalmidae (spectacled lizards) (INCLUDING "Alopoglossidae")
Family Teiidae (whiptails)
Family Lacertidae (true lizards)
Family Amphisbaenidae (tropical worm lizards) (INCLUDING "Rhineuridae", "Trogonophidae", "Bipedidae", "Cadeidae", "Blanidae")
Family Agamidae (agamas)
Family Chamaeleonidae (chameleons)
Family Iguanidae (iguanas) (INCLUDING "Corytophanidae", "Crotaphytidae", "Dactyloidae", "Hoplocercidae", "Leiocephalidae", "Leiosauridae", "Liolaemidae", "Opluridae", "Phrynosomatidae", "Polychrotidae" (underlined if including "Dactyloidae"), "Tropiduridae")
Family Anguidae (glass lizards and allies) (including "Diploglossidae")
Family Anniellidae (american legless lizards)
Family Xenosauridae (knob-scaled lizards) (INCLUDING "Shinisauridae")
Family Helodermatidae (gila monsters)
Family Varanidae (monitor lizards) (including "Lanthanotidae")

Family Acrochordidae (file snakes)
Family Aniliidae (false coral snake)
Family Anomochilidae (dwarf pipe snakes)
Family Atractaspididae (stiletto snakes)
Family Boidae (boas) (including "Bolyeriidae", "Cylindrophiidae", "Loxocemidae", "Pythonidae", "Tropidophiidae", "Uropeltidae", and "Xenopeltidae")
Family Colubridae (colubrids) (including "Cyclocoridae", "Homalopsidae", "Lamphrophididae", (in bold and underlined if including "Psammophididae"), "Pareidae", "Prosymnidae", "Psammophididae", "Pseudaspididae", "Pseudoxyrhophididae", and "Xenodermidae")
Family Elapidae (elapids)
Family Viperidae (vipers)
Family Xenophidiidae (spinejaw snakes)
Family Anomalepididae (primitive blind snakes)
Family Typhlopidae (typical blind snakes) (including "Gerrhopilidae", "Leptotyphlopidae" and "Xenotyphlopidae")

Order Crocodilia (crocodilians)
Family Crocodylidae (crocodiles)
Family Alligatoridae (alligators, caimans)
Family Gavialidae (gharials)

As you can see, there is no reptile family I saw in the wild without seeing it also in captivity.
 
Order Testudines
Order Rhynchocephalia
Order Squamata
Order Crocodilia

Order Testudines (turtles, tortoises, terrapins)
Family Chelydridae (snapping turtles)
Family Emydidae (pond turtles, terrapins, sliders)
Family Testudinidae (tortoises)
Family Geoemydidae (asian river turtles and allies)
Family Platysternidae (big-headed turtle)
Family Carettochelyidae (pig-nosed turtle)
Family Trionychidae (softshell turtles)
Family Dermatemydidae (central american river turtle)
Family Kinosternidae (mud turtles, musk turtles)
Family Cheloniidae (sea turtles)
Family Dermochelyidae (leatherback sea turtle)
Family Chelidae (austro-american sideneck turtles)
Family Pelomedusidae (afro-american sideneck turtles)
Family Podocnemididae (madagascan big-headed turtle, american sideneck river turtles)

Order Rhynchocephalia (“beak-heads”)
Family Sphenodontidae (tuatara)

Order Squamata (scaled reptiles)
Family Dibamidae (blind lizards)
Family Gekkonidae (geckos)
Family Phyllodactylidae
Family Spaerodactylidae
Family Eublepharidae (eyelid geckos)
Family Pygopodidae (legless lizards)
Family Diplodactylidae (stone geckos)
Family Carphodactylidae (knob-tailed geckos)
Family Cordylidae (spinytail lizards)
Family Gerrhosauridae (plated lizards)
Family Scincidae (skinks)
Family Xantusiidae (night lizards)
Family Alopoglossidae
Family Gymnophthalmidae (spectacled lizards)
Family Teiidae (whiptails)
Family Lacertidae (true lizards)
Family Rhineuridae (north american worm lizards)
Family Amphisbaenidae (tropical worm lizards)
Family Trogonophidae (shorthead worm lizards)
Family Bipedidae (two-legged worm lizards)
Family Cadeidae (cuban worm lizards)
Family Blanidae (mediterranean worm lizards)
Family Agamidae (agamas)
Family Chamaeleonidae (chameleons)
Family Corytophanidae (casquehead lizards)
Family Crotaphytidae (collared lizards, leopard lizards)
Family Dactyloidae (anoles)
Family Hoplocercidae (wood lizards)
Family Iguanidae (iguanas)
Family Leiocephalidae (curlytail lizards)
Family Leiosauridae (leiosaurs)
Family Liolaemidae (south american swifts)
Family Opluridae (madagascan iguanas)
Family Phrynosomatidae (horned lizards and allies)
Family Polychrotidae (bush anoles)
Family Tropiduridae (neotropical ground lizards)
Family Anguidae (glass lizards and allies)
Family Anniellidae (american legless lizards)
Family Diploglossidae (galliwasps)
Family Xenosauridae (knob-scaled lizards)
Family Helodermatidae (gila monsters)
Family Shinisauridae (chinese crocodile lizard)
Family Lanthanotidae (earless monitor lizard)
Family Varanidae (monitor lizards)

Family Acrochordidae (file snakes)
Family Aniliidae (false coral snake)
Family Anomochilidae (dwarf pipe snakes)
Family Atractaspididae (stiletto snakes)
Family Boidae (boas)
Family Bolyeriidae (round island boa)
Family Colubridae (colubrids)
Family Cyclocoridae
Family Cylindrophiidae (asian pipe snakes)
Family Elapidae (elapids)
Family Homalopsidae (mudsnakes)
Family Lamprophiidae (lamprophiids)
Family Loxocemidae (mexican python)
Family Pareidae
Family Prosymnidae (african shovel-snout snakes)
Family Psammophiidae
Family Pseudaspididae
Family Pseudoxyrhophiidae (african sand snakes and relatives)
Family Pythonidae (pythons)
Family Tropidophiidae (dwarf boas)
Family Uropeltidae (shield-tailed snakes)
Family Viperidae (vipers)
Family Xenodermidae
Family Xenopeltidae (sunbeam snakes)
Family Xenophidiidae (spinejaw snakes)
Family Anomalepididae (primitive blind snakes)
Family Gerrhopilidae (indo-malayan blind snakes)
Family Leptotyphlopidae (slender blind snakes)
Family Typhlopidae (typical blind snakes)
Family Xenotyphlopidae (malagasy blind snakes)

Order Crocodilia (crocodilians)
Family Crocodylidae (crocodiles)
Family Alligatoridae (alligators, caimans)
Family Gavialidae (gharials)
 
Wild
Captive
Both


Order Testudines (turtles, tortoises, terrapins)
Family Chelydridae (snapping turtles)
Family Emydidae (pond turtles, terrapins, sliders)
Family Testudinidae (tortoises)
Family Geoemydidae (asian river turtles and allies)
Family Platysternidae (big-headed turtle)
Family Carettochelyidae (pig-nosed turtle)
Family Trionychidae (softshell turtles)
Family Dermatemydidae (central american river turtle)
Family Kinosternidae (mud turtles, musk turtles)
Family Cheloniidae (sea turtles)
Family Dermochelyidae (leatherback sea turtle)
Family Chelidae (austro-american sideneck turtles)
Family Pelomedusidae (afro-american sideneck turtles)
Family Podocnemididae (madagascan big-headed turtle, american sideneck river turtles)


Order Rhynchocephalia (“beak-heads”)
Family Sphenodontidae (tuatara)


Order Squamata (scaled reptiles)
Family Dibamidae (blind lizards)
Family Gekkonidae (geckos)
Family Phyllodactylidae
Family Spaerodactylidae
Family Eublepharidae(eyelid geckos)
Family Pygopodidae (legless lizards)
Family Diplodactylidae (stone geckos)
Family Carphodactylidae (knob-tailed geckos)
Family Cordylidae (spinytail lizards)
Family Gerrhosauridae (plated lizards)
Family Scincidae (skinks)
Family Xantusiidae (night lizards)
Family Alopoglossidae
Family Gymnophthalmidae (spectacled lizards)
Family Teiidae (whiptails)
Family Lacertidae (true lizards)
Family Rhineuridae (north american worm lizards)
Family Amphisbaenidae (tropical worm lizards)
Family Trogonophidae (shorthead worm lizards)
Family Bipedidae (two-legged worm lizards)
Family Cadeidae (cuban worm lizards)
Family Blanidae (mediterranean worm lizards)
Family Agamidae (agamas)
Family Chamaeleonidae (chameleons)
Family Corytophanidae (casquehead lizards)
Family Crotaphytidae (collared lizards, leopard lizards)
Family Dactyloidae (anoles)
Family Hoplocercidae (wood lizards)
Family Iguanidae (iguanas)
Family Leiocephalidae (curlytail lizards)
Family Leiosauridae (leiosaurs)
Family Liolaemidae (south american swifts)
Family Opluridae (madagascan iguanas)
Family Phrynosomatidae (horned lizards and allies)
Family Polychrotidae (bush anoles)
Family Tropiduridae (neotropical ground lizards)
Family Anguidae (glass lizards and allies)
Family Anniellidae (american legless lizards)
Family Diploglossidae (galliwasps)
Family Xenosauridae (knob-scaled lizards)
Family Helodermatidae (gila monsters)
Family Shinisauridae (chinese crocodile lizard)
Family Lanthanotidae (earless monitor lizard)
Family Varanidae (monitor lizards)

Family Acrochordidae (file snakes)
Family Aniliidae (false coral snake)
Family Anomochilidae (dwarf pipe snakes)
Family Atractaspididae (stiletto snakes)
Family Boidae (boas)
Family Bolyeriidae (round island boa)
Family Colubridae (colubrids)
Family Cyclocoridae
Family Cylindrophiidae (asian pipe snakes)
Family Elapidae (elapids)
Family Homalopsidae (mudsnakes)
Family Lamprophiidae (lamprophiids)
Family Loxocemidae (mexican python)
Family Pareidae
Family Prosymnidae (african shovel-snout snakes)
Family Psammophiidae
Family Pseudaspididae
Family Pseudoxyrhophiidae (african sand snakes and relatives)
Family Pythonidae (pythons)
Family Tropidophiidae (dwarf boas)
Family Uropeltidae (shield-tailed snakes)
Family Viperidae (vipers)
Family Xenodermidae
Family Xenopeltidae (sunbeam snakes)
Family Xenophidiidae (spinejaw snakes)
Family Anomalepididae (primitive blind snakes)
Family Gerrhopilidae (indo-malayan blind snakes)
Family Leptotyphlopidae (slender blind snakes)
Family Typhlopidae (typical blind snakes)
Family Xenotyphlopidae (malagasy blind snakes)


Order Crocodilia (crocodilians)
Family Crocodylidae (crocodiles)
Family Alligatoridae (alligators, caimans)
Family Gavialidae (gharials)
 
Families I have seen in bold

* = seen in the wild

Order Testudines (turtles, tortoises, terrapins)*
Family Chelydridae (snapping turtles)*
Family Emydidae (pond turtles, terrapins, sliders)*
Family Testudinidae (tortoises)
Family Geoemydidae (asian river turtles and allies)*
Family Platysternidae (big-headed turtle)
Family Carettochelyidae (pig-nosed turtle)
Family Trionychidae (softshell turtles)*
Family Dermatemydidae (central american river turtle)
Family Kinosternidae (mud turtles, musk turtles)*
Family Cheloniidae (sea turtles)
Family Dermochelyidae (leatherback sea turtle)
Family Chelidae (austro-american sideneck turtles)
Family Pelomedusidae (afro-american sideneck turtles)
Family Podocnemididae (madagascan big-headed turtle, american sideneck river turtles)


Order Rhynchocephalia (“beak-heads”)
Family Sphenodontidae (tuatara)


Order Squamata (scaled reptiles)*
Family Dibamidae (blind lizards)
Family Gekkonidae (geckos)*
Family Phyllodactylidae
Family Spaerodactylidae*
Family Eublepharidae (eyelid geckos)
Family Pygopodidae (legless lizards)
Family Diplodactylidae (stone geckos)
Family Carphodactylidae (knob-tailed geckos)
Family Cordylidae (spinytail lizards)
Family Gerrhosauridae (plated lizards)
Family Scincidae (skinks)*
Family Xantusiidae (night lizards)
Family Alopoglossidae
Family Gymnophthalmidae (spectacled lizards)*
Family Teiidae (whiptails)*
Family Lacertidae (true lizards)*
Family Rhineuridae (north american worm lizards)
Family Amphisbaenidae (tropical worm lizards)
Family Trogonophidae (shorthead worm lizards)
Family Bipedidae (two-legged worm lizards)
Family Cadeidae (cuban worm lizards)
Family Blanidae (mediterranean worm lizards)
Family Agamidae (agamas)
Family Chamaeleonidae (chameleons)
Family Corytophanidae (casquehead lizards)*
Family Crotaphytidae (collared lizards, leopard lizards)
Family Dactyloidae (anoles)*
Family Hoplocercidae (wood lizards)
Family Iguanidae (iguanas)*
Family Leiocephalidae (curlytail lizards)
Family Leiosauridae (leiosaurs)
Family Liolaemidae (south american swifts)
Family Opluridae (madagascan iguanas)
Family Phrynosomatidae (horned lizards and allies)*
Family Polychrotidae (bush anoles)
Family Tropiduridae (neotropical ground lizards)
Family Anguidae (glass lizards and allies)*
Family Anniellidae (american legless lizards)
Family Diploglossidae (galliwasps)
Family Xenosauridae (knob-scaled lizards)
Family Helodermatidae (gila monsters)
Family Shinisauridae (chinese crocodile lizard)
Family Lanthanotidae (earless monitor lizard)
Family Varanidae (monitor lizards)

Family Acrochordidae (file snakes)
Family Aniliidae (false coral snake)
Family Anomochilidae (dwarf pipe snakes)
Family Atractaspididae (stiletto snakes)
Family Boidae (boas)*
Family Bolyeriidae (round island boa)
Family Colubridae (colubrids)*
Family Cyclocoridae
Family Cylindrophiidae (asian pipe snakes)
Family Elapidae (elapids)*
Family Homalopsidae (mudsnakes)
Family Lamprophiidae (lamprophiids)
Family Loxocemidae (mexican python)
Family Pareidae
Family Prosymnidae (african shovel-snout snakes)
Family Psammophiidae
Family Pseudaspididae
Family Pseudoxyrhophiidae (african sand snakes and relatives)
Family Pythonidae (pythons)
Family Tropidophiidae (dwarf boas)
Family Uropeltidae (shield-tailed snakes)
Family Viperidae (vipers)*
Family Xenodermidae
Family Xenopeltidae (sunbeam snakes)
Family Xenophidiidae (spinejaw snakes)
Family Anomalepididae (primitive blind snakes)
Family Gerrhopilidae (indo-malayan blind snakes)
Family Leptotyphlopidae (slender blind snakes)
Family Typhlopidae (typical blind snakes)
Family Xenotyphlopidae (malagasy blind snakes)


Order Crocodilia (crocodilians)*
Family Crocodylidae (crocodiles)*
Family Alligatoridae (alligators, caimans)*
Family Gavialidae (gharials)
 
Wild
Captive
Both

Order Testudines (turtles, tortoises, terrapins)
Family Chelydridae (snapping turtles)
Family Emydidae (pond turtles, terrapins, sliders)
Family Testudinidae (tortoises)
Family Geoemydidae (asian river turtles and allies)
Family Platysternidae (big-headed turtle)
Family Carettochelyidae (pig-nosed turtle)
Family Trionychidae (softshell turtles)
Family Dermatemydidae (central american river turtle)
Family Kinosternidae (mud turtles, musk turtles)
Family Cheloniidae (sea turtles)
Family Dermochelyidae (leatherback sea turtle)
Family Chelidae (austro-american sideneck turtles)
Family Pelomedusidae (afro-american sideneck turtles)
Family Podocnemididae (madagascan big-headed turtle, american sideneck river turtles)


Order Rhynchocephalia (“beak-heads”)
Family Sphenodontidae (tuatara)


Order Squamata (scaled reptiles)
Family Dibamidae (blind lizards)
Family Gekkonidae (geckos)
Family Phyllodactylidae
Family Spaerodactylidae
Family Eublepharidae (eyelid geckos)
Family Pygopodidae (legless lizards)
Family Diplodactylidae (stone geckos)
Family Carphodactylidae (knob-tailed geckos)
Family Cordylidae (spinytail lizards)
Family Gerrhosauridae (plated lizards)
Family Scincidae (skinks)
Family Xantusiidae (night lizards)
Family Alopoglossidae
Family Gymnophthalmidae (spectacled lizards)
Family Teiidae (whiptails)
Family Lacertidae (true lizards)
Family Rhineuridae (north american worm lizards)
Family Amphisbaenidae (tropical worm lizards)
Family Trogonophidae (shorthead worm lizards)
Family Bipedidae (two-legged worm lizards)
Family Cadeidae (cuban worm lizards)
Family Blanidae (mediterranean worm lizards)
Family Agamidae (agamas)
Family Chamaeleonidae (chameleons)
Family Corytophanidae (casquehead lizards)
Family Crotaphytidae (collared lizards, leopard lizards)
Family Dactyloidae (anoles)
Family Hoplocercidae (wood lizards)
Family Iguanidae (iguanas)
Family Leiocephalidae (curlytail lizards)
Family Leiosauridae (leiosaurs)
Family Liolaemidae (south american swifts)
Family Opluridae (madagascan iguanas)
Family Phrynosomatidae (horned lizards and allies)
Family Polychrotidae (bush anoles)
Family Tropiduridae (neotropical ground lizards)
Family Anguidae (glass lizards and allies)
Family Anniellidae (american legless lizards)
Family Diploglossidae (galliwasps)
Family Xenosauridae (knob-scaled lizards)
Family Helodermatidae (gila monsters)
Family Shinisauridae (chinese crocodile lizard)
Family Lanthanotidae (earless monitor lizard)
Family Varanidae (monitor lizards)

Family Acrochordidae (file snakes)
Family Aniliidae (false coral snake)
Family Anomochilidae (dwarf pipe snakes)
Family Atractaspididae (stiletto snakes)
Family Boidae (boas)
Family Bolyeriidae (round island boa)
Family Colubridae (colubrids)
Family Cyclocoridae
Family Cylindrophiidae (asian pipe snakes)
Family Elapidae (elapids)
Family Homalopsidae (mudsnakes)
Family Lamprophiidae (lamprophiids)
Family Loxocemidae (mexican python)
Family Pareidae
Family Prosymnidae (african shovel-snout snakes)
Family Psammophiidae
Family Pseudaspididae
Family Pseudoxyrhophiidae (african sand snakes and relatives)
Family Pythonidae (pythons)
Family Tropidophiidae (dwarf boas)
Family Uropeltidae (shield-tailed snakes)
Family Viperidae (vipers)
Family Xenodermidae
Family Xenopeltidae (sunbeam snakes)
Family Xenophidiidae (spinejaw snakes)
Family Anomalepididae (primitive blind snakes)
Family Gerrhopilidae (indo-malayan blind snakes)
Family Leptotyphlopidae (slender blind snakes)
Family Typhlopidae (typical blind snakes)
Family Xenotyphlopidae (malagasy blind snakes)


Order Crocodilia (crocodilians)
Family Crocodylidae (crocodiles)
Family Alligatoridae (alligators, caimans)
Family Gavialidae (gharials)

That makes 67 out of 92 families that I have seen so far. 65 of them I have photographed (only Xenosauridae and Xenodermidae I haven't). That last one is painful and I will be on the lookout to fix that. Xenodermus javanicus is one of my highest-ranked species to photograph.

I can also not believe that I haven't seen Tropidophiidae yet, let's get that right as well!
 
Bolded for captive, underlined for wild.

Order Testudines (turtles, tortoises, terrapins)
Family Chelydridae (snapping turtles)
Family Emydidae (pond turtles, terrapins, sliders)
Family Testudinidae (tortoises)
Family Geoemydidae (asian river turtles and allies)
Family Platysternidae (big-headed turtle)
Family Carettochelyidae (pig-nosed turtle)
Family Trionychidae (softshell turtles)
Family Dermatemydidae (central american river turtle)
Family Kinosternidae (mud turtles, musk turtles)
Family Cheloniidae (sea turtles)
Family Dermochelyidae (leatherback sea turtle)
Family Chelidae (austro-american sideneck turtles)
Family Pelomedusidae (afro-american sideneck turtles)
Family Podocnemididae (madagascan big-headed turtle, american sideneck river turtles)


Order Rhynchocephalia (“beak-heads”)
Family Sphenodontidae (tuatara)


Order Squamata (scaled reptiles)
Family Dibamidae (blind lizards)
Family Gekkonidae (geckos)
Family Phyllodactylidae
Family Spaerodactylidae
Family Eublepharidae (eyelid geckos)
Family Pygopodidae (legless lizards)
Family Diplodactylidae (stone geckos)
Family Carphodactylidae (knob-tailed geckos)
Family Cordylidae (spinytail lizards)
Family Gerrhosauridae (plated lizards)
Family Scincidae (skinks)
Family Xantusiidae (night lizards)
Family Alopoglossidae
Family Gymnophthalmidae (spectacled lizards)
Family Teiidae (whiptails)
Family Lacertidae (true lizards)
Family Rhineuridae (north american worm lizards)
Family Amphisbaenidae (tropical worm lizards)
Family Trogonophidae (shorthead worm lizards)
Family Bipedidae (two-legged worm lizards)
Family Cadeidae (cuban worm lizards)
Family Blanidae (mediterranean worm lizards)
Family Agamidae (agamas)
Family Chamaeleonidae (chameleons)
Family Corytophanidae (casquehead lizards)
Family Crotaphytidae (collared lizards, leopard lizards)
Family Dactyloidae (anoles)
Family Hoplocercidae (wood lizards)
Family Iguanidae (iguanas)
Family Leiocephalidae (curlytail lizards)
Family Leiosauridae (leiosaurs)
Family Liolaemidae (south american swifts)
Family Opluridae (madagascan iguanas)
Family Phrynosomatidae (horned lizards and allies)
Family Polychrotidae (bush anoles)
Family Tropiduridae (neotropical ground lizards)
Family Anguidae (glass lizards and allies)
Family Anniellidae (american legless lizards)
Family Diploglossidae (galliwasps)
Family Xenosauridae (knob-scaled lizards)
Family Helodermatidae (gila monsters)
Family Shinisauridae (chinese crocodile lizard)
Family Lanthanotidae (earless monitor lizard)
Family Varanidae (monitor lizards)

Family Acrochordidae (file snakes)
Family Aniliidae (false coral snake)
Family Anomochilidae (dwarf pipe snakes)
Family Atractaspididae (stiletto snakes)
Family Boidae (boas)
Family Bolyeriidae (round island boa)
Family Colubridae (colubrids)
Family Cyclocoridae
Family Cylindrophiidae (asian pipe snakes)
Family Elapidae (elapids)
Family Homalopsidae (mudsnakes)
Family Lamprophiidae (lamprophiids)
Family Loxocemidae (mexican python)
Family Pareidae
Family Prosymnidae (african shovel-snout snakes)
Family Psammophiidae
Family Pseudaspididae
Family Pseudoxyrhophiidae (african sand snakes and relatives)
Family Pythonidae (pythons)
Family Tropidophiidae (dwarf boas)
Family Uropeltidae (shield-tailed snakes)
Family Viperidae (vipers)
Family Xenodermidae
Family Xenopeltidae (sunbeam snakes)
Family Xenophidiidae (spinejaw snakes)
Family Anomalepididae (primitive blind snakes)
Family Gerrhopilidae (indo-malayan blind snakes)
Family Leptotyphlopidae (slender blind snakes)
Family Typhlopidae (typical blind snakes)
Family Xenotyphlopidae (malagasy blind snakes)


Order Crocodilia (crocodilians)
Family Crocodylidae (crocodiles)
Family Alligatoridae (alligators, caimans)
Family Gavialidae (gharials)

48/92 total.
 
Order Testudines (turtles, tortoises, terrapins)
Family Chelydridae (snapping turtles)
Family Emydidae (pond turtles, terrapins, sliders)
Family Testudinidae (tortoises)
Family Geoemydidae (asian river turtles and allies)
Family Platysternidae (big-headed turtle)
Family Carettochelyidae (pig-nosed turtle)
Family Trionychidae (softshell turtles)
Family Dermatemydidae (central american river turtle)
Family Kinosternidae (mud turtles, musk turtles)
Family Cheloniidae (sea turtles)
Family Dermochelyidae (leatherback sea turtle)
Family Chelidae (austro-american sideneck turtles)
Family Pelomedusidae (afro-american sideneck turtles)
Family Podocnemididae (madagascan big-headed turtle, american sideneck river turtles)


Order Rhynchocephalia (“beak-heads”)
Family Sphenodontidae (tuatara)


Order Squamata (scaled reptiles)
Family Dibamidae (blind lizards)
Family Gekkonidae (geckos)
Family Phyllodactylidae
Family Spaerodactylidae
Family Eublepharidae (eyelid geckos)
Family Pygopodidae (legless lizards)
Family Diplodactylidae (stone geckos)
Family Carphodactylidae (knob-tailed geckos)
Family Cordylidae (spinytail lizards)
Family Gerrhosauridae (plated lizards)
Family Scincidae (skinks)
Family Xantusiidae (night lizards)
Family Alopoglossidae
Family Gymnophthalmidae (spectacled lizards)
Family Teiidae (whiptails)
Family Lacertidae (true lizards)
Family Rhineuridae (north american worm lizards)
Family Amphisbaenidae (tropical worm lizards)
Family Trogonophidae (shorthead worm lizards)
Family Bipedidae (two-legged worm lizards)
Family Cadeidae (cuban worm lizards)
Family Blanidae (mediterranean worm lizards)
Family Agamidae (agamas)
Family Chamaeleonidae (chameleons)
Family Corytophanidae (casquehead lizards)
Family Crotaphytidae (collared lizards, leopard lizards)
Family Dactyloidae (anoles)
Family Hoplocercidae (wood lizards)
Family Iguanidae (iguanas)
Family Leiocephalidae (curlytail lizards)
Family Leiosauridae (leiosaurs)
Family Liolaemidae (south american swifts)
Family Opluridae (madagascan iguanas)
Family Phrynosomatidae (horned lizards and allies)
Family Polychrotidae (bush anoles)
Family Tropiduridae (neotropical ground lizards)
Family Anguidae (glass lizards and allies)
Family Anniellidae (american legless lizards)
Family Diploglossidae (galliwasps)
Family Xenosauridae (knob-scaled lizards)
Family Helodermatidae (gila monsters)
Family Shinisauridae (chinese crocodile lizard)
Family Lanthanotidae (earless monitor lizard)
Family Varanidae (monitor lizards)

Family Acrochordidae (file snakes)
Family Aniliidae (false coral snake)
Family Anomochilidae (dwarf pipe snakes)
Family Atractaspididae (stiletto snakes)
Family Boidae (boas)
Family Bolyeriidae (round island boa)
Family Colubridae (colubrids)
Family Cyclocoridae
Family Cylindrophiidae (asian pipe snakes)
Family Elapidae (elapids)
Family Homalopsidae (mudsnakes)
Family Lamprophiidae (lamprophiids)
Family Loxocemidae (mexican python)
Family Pareidae
Family Prosymnidae (african shovel-snout snakes)
Family Psammophiidae
Family Pseudaspididae
Family Pseudoxyrhophiidae (african sand snakes and relatives)
Family Pythonidae (pythons)
Family Tropidophiidae (dwarf boas)
Family Uropeltidae (shield-tailed snakes)
Family Viperidae (vipers)
Family Xenodermidae
Family Xenopeltidae (sunbeam snakes)
Family Xenophidiidae (spinejaw snakes)
Family Anomalepididae (primitive blind snakes)
Family Gerrhopilidae (indo-malayan blind snakes)
Family Leptotyphlopidae (slender blind snakes)
Family Typhlopidae (typical blind snakes)
Family Xenotyphlopidae (malagasy blind snakes)


Order Crocodilia (crocodilians)
Family Crocodylidae (crocodiles)
Family Alligatoridae (alligators, caimans)
Family Gavialidae (gharials)
 
So here is where I stand in terms of reptile observations as of this writing. Like the other taxonomic threads, I will be basing my list off of iNaturalist's taxon scheme, so it may differ slightly from what others have.

This one wasn't as time-consuming to put together (reptile taxonomy is thankfully way less bloated than that of fish or birds). On the other hand, it wasn't as interesting either, since there is far less taxonomic diversity this time around (particularly egregious with snakes, where I have seen nearly 100 species of snakes, yet only covered 8 of the 31 families thanks to the vast majority of them being Colubrids).

In total, I have observed 3 of the 4 orders of reptiles (missing Rhynchocephalia as I have yet to see a Tuatara in person) and 40 out of 92 families.

Crocodilians (Order Crocodylia) - 3 out of 3 families.
Rhynchocephalians (Order Rhynchocephalia) - 0 out of 1 families.
Snakes and Lizards (Order Squamata) - 24 out of 74 families.
Turtles and Tortoises (Order Testudine) - 13 out of 14 families

Observed only in captivity.
Observed only in the wild.
Observed in both captivity and the wild.

Crocodilians (Order Crocodylia)
  • Alligators and Caimans (Family Alligatoridae)
  • Crocodiles (Family Crocodylidae)
  • Gharials (Family Gavialidae)

Snakes and Lizards (Order Squamata)
  • Typical Worm Lizards (Family Amphisbaenidae)
  • Two-legged Worm Lizards (Family Bipedidae)
  • Mediterranean Worm Lizards (Family Blanidae)
  • Cuban Keel-headed Worm Lizards (Family Cadeidae)
  • North American Worm Lizards (Family Rhineuridae)
  • Shorthead Worm Lizards (Family Trogonophidae)
  • Australian Leaf-tailed, Thick-tailed, and Knob-tailed Geckos (Family Carphodactylidae)
  • Australasian Geckos (Family Diplodactylidae)
  • Eyelid Geckos (Family Eublepharidae)
  • Typical Geckos (Family Gekkonidae)
  • Phyllodactylid Geckos (Family Phyllodactylidae)
  • Legless Geckos (Family Pygopodidae)
  • Sphaeros and Allies (Family Sphaerodactylidae)
  • Dragons (Family Agamidae)
  • Shade Lizards (Family Alopoglossidae)
  • Glass and Alligator Lizards (Family Anguidae)
  • Anoles (Family Anolidae)
  • Chameleons (Family Chamaeleonidae)
  • Girdle-tail Lizards (Family Cordylidae)
  • Helmeted Lizards (Family Corytophanidae)
  • Collared Lizards (Family Crotaphytidae)
  • Dibamids (Family Dibamidae)
  • Galliwasps (Family Diploglossidae)
  • Plated Lizards (Family Gerrhosauridae)
  • Spectacled Lizards (Family Gymnophthalmidae)
  • Beaded Lizards (Family Helodermatidae)
  • Dwarf Iguanas (Family Hoplocercidae)
  • Iguanas and Chuckwallas (Family Iguanidae)
  • Wall Lizards (Family Lacertidae)
  • Earless Monitors (Family Lanthanotidae)
  • Curly-tailed Lizards (Family Leiocephalidae)
  • Smooth Anoles (Family Leiosauridae)
  • South American Lesser Iguanas (Family Liolaemidae)
  • Madagascan Iguanas (Family Opluridae)
  • Phrynosomatid Lizards (Family Phrynosomatidae)
  • Monkey Lizards (Family Polychrotidae)
  • Skinks (Family Scincidae)
  • Crocodile Lizards (Family Shinisauridae)
  • Whiptails and Tegus (Family Teiidae)
  • Neotropical Ground Lizards (Family Tropiduridae)
  • Monitor Lizards (Family Varanidae)
  • Night Lizards (Family Xantusiidae)
  • Knob-scaled Lizards (Family Xenosauridae)
  • Aquatic File Snakes (Family Acrochordidae)
  • False Coral Snakes (Family Aniliidae)
  • Dawn Blind Snakes (Family Anomalepididae)
  • Dwarf Pipe Snakes (Family Anomochilidae)
  • Atractaspidid Snakes (Family Atractaspididae)
  • Boas (Family Boidae)
  • Round Island Boas (Family Bolyeriidae)
  • Colubrid Snakes (Family Colubridae)
  • Philippine Water and Burrowing Snakes (Family Cyclocoridae)
  • Asian Pipe Snakes (Family Cylindrophiidae)
  • Elapid Snakes (Family Elapidae)
  • Indo-Malayan Blindsnakes (Family Gerrhopilidae)
  • Mud Snakes (Family Homalopsidae)
  • Lamprophiid Snakes (Family Lamprophiidae)
  • Threadsnakes (Family Leptotyphlopidae)
  • Mexican Burrowing Pythons (Family Loxocemidae)
  • Micrelapids (Family Micrelapidae)
  • Slug Snakes (Family Pareidae)
  • Shovel-Snouts (Family Prosymnidae)
  • Sand Snakes (Family Psammophiidae)
  • Mole and Western Keeled Snakes (Family Pseudaspididae)
  • Madagascar Brook Snakes (Family Pseudoxyrhophiidae)
  • Pythons (Family Pythonidae)
  • Dwarf Boas (Family Tropidophiidae)
  • Typical Blind Snakes (Family Typhlopidae)
  • Shield-tailed Snakes (Family Uropeltidae)
  • Vipers (Family Viperidae)
  • Xenodermid Snakes (Family Xenodermidae)
  • Sunbeam Snakes (Family Xenopeltidae)
  • Spine-jawed Snakes (Family Xenophidiidae)
  • Madagascar Blindsnakes (Family Xenotyphlopidae)

Turtles and Tortoises (Order Testudine)
  • Typical Sea Turtles (Family Cheloniidae)
  • Leatherback Sea Turtles (Family Dermochelyidae)
  • Pig-nosed Turtles (Family Carettochelyidae)
  • Austro-American Side-necked Turtles (Family Chelidae)
  • Snapping Turtles (Family Chelydridae)
  • Central American River Turtles (Family Dermatemydidae)
  • Pond and Box Turtles (Family Emydidae)
  • Eurasian Pond, River, and Neotropical Wood Turtles (Family Geoemydidae)
  • American Mud and Musk Turtles (Family Kinosternidae)
  • African Mud Turtles (Family Pelomedusidae)
  • Big-headed Turtles (Family Platysternidae)
  • South American and Malagasy River Turtles (Family Podocnemididae)
  • Tortoises (Family Testudinidae)
  • Softshell and Flapshell Turtles (Family Trionychidae)


 
Order Testudines
Order Rhynchocephalia
Order Squamata
Order Crocodilia

-----------------------------------
Families:

Order Testudines (turtles, tortoises, terrapins)
Family Chelydridae (snapping turtles)
Family Emydidae (pond turtles, terrapins, sliders)
Family Testudinidae (tortoises)
Family Geoemydidae (asian river turtles and allies)
Family Platysternidae (big-headed turtle)*
Family Carettochelyidae (pig-nosed turtle)
Family Trionychidae (softshell turtles)
Family Dermatemydidae (central american river turtle)
Family Kinosternidae (mud turtles, musk turtles)
Family Cheloniidae (sea turtles)
Family Dermochelyidae (leatherback sea turtle)
Family Chelidae (austro-american sideneck turtles)
Family Pelomedusidae (afro-american sideneck turtles)
Family Podocnemididae (madagascan big-headed turtle, american sideneck river turtles)


Order Rhynchocephalia (“beak-heads”)
Family Sphenodontidae (tuatara)


Order Squamata (scaled reptiles)
Family Dibamidae (blind lizards)
Family Gekkonidae (geckos)
Family Phyllodactylidae*
Family Sphaerodactylidae*
Family Eublepharidae (eyelid geckos)
Family Pygopodidae (legless lizards)
Family Diplodactylidae (stone geckos)
Family Carphodactylidae (knob-tailed geckos)
Family Cordylidae (spinytail lizards)
Family Gerrhosauridae (plated lizards)*
Family Scincidae (skinks)
Family Xantusiidae (night lizards)
Family Alopoglossidae
Family Gymnophthalmidae (spectacled lizards)
Family Teiidae (whiptails)
Family Lacertidae (true lizards)
Family Rhineuridae (north american worm lizards)
Family Amphisbaenidae (tropical worm lizards)
Family Trogonophidae (shorthead worm lizards)
Family Bipedidae (two-legged worm lizards)
Family Cadeidae (cuban worm lizards)
Family Blanidae (mediterranean worm lizards)
Family Agamidae (agamas)
Family Chamaeleonidae (chameleons)
Family Corytophanidae (casquehead lizards)
Family Crotaphytidae (collared lizards, leopard lizards)
Family Dactyloidae (anoles)
Family Hoplocercidae (wood lizards)
Family Iguanidae (iguanas)
Family Leiocephalidae (curlytail lizards)*
Family Leiosauridae (leiosaurs)
Family Liolaemidae (south american swifts)
Family Opluridae (madagascan iguanas)
Family Phrynosomatidae (horned lizards and allies)
Family Polychrotidae (bush anoles)*
Family Tropiduridae (neotropical ground lizards)
Family Anguidae (glass lizards and allies)
Family Anniellidae (american legless lizards)
Family Diploglossidae (galliwasps)
Family Xenosauridae (knob-scaled lizards)*
Family Helodermatidae (gila monsters)
Family Shinisauridae (chinese crocodile lizard)
Family Lanthanotidae (earless monitor lizard)
Family Varanidae (monitor lizards)

Family Acrochordidae (file snakes)
Family Aniliidae (false coral snake)
Family Anomochilidae (dwarf pipe snakes)
Family Atractaspididae (stiletto snakes)
Family Boidae (boas)
Family Bolyeriidae (round island boa)
Family Colubridae (colubrids)
Family Cyclocoridae
Family Cylindrophiidae (asian pipe snakes)
Family Elapidae (elapids)
Family Homalopsidae (mudsnakes)
Family Lamprophiidae (lamprophiids)
Family Loxocemidae (mexican python)
Family Pareidae
Family Prosymnidae (african shovel-snout snakes)
Family Psammophiidae
Family Pseudaspididae
Family Pseudoxyrhophiidae (african sand snakes and relatives)
Family Pythonidae (pythons)
Family Tropidophiidae (dwarf boas)
Family Uropeltidae (shield-tailed snakes)
Family Viperidae (vipers)
Family Xenodermidae
Family Xenopeltidae (sunbeam snakes)
Family Xenophidiidae (spinejaw snakes)
Family Anomalepididae (primitive blind snakes)
Family Gerrhopilidae (indo-malayan blind snakes)
Family Leptotyphlopidae (slender blind snakes)
Family Typhlopidae (typical blind snakes)
Family Xenotyphlopidae (malagasy blind snakes)


Order Crocodilia (crocodilians)
Family Crocodylidae (crocodiles)
Family Alligatoridae (alligators, caimans)
Family Gavialidae (gharials)

------
* not sure (captive)

_________________________________________________________

5 new families + 5 new families captive + 9 new families for the wild

New families seen:
Family Tropiduridae (neotropical ground lizards) - Paraguay
Family Sphaerodactylidae* - Dom Rep
Family Leiocephalidae (curlytail lizards)* - Dom Rep
Family Diploglossidae (galliwasps) - Dom Rep
Family Tropidophiidae (dwarf boas) - Dom Rep

New families seen captive:
Family Pelomedusidae (afro-american sideneck turtles) – Cologne Zoo
Family Lamprophiidae (lamprophiids) – Cologne Zoo
Family Xantusiidae (night lizards) – Frankfurt Zoo
Family Kinosternidae (mud turtles, musk turtles) – Frankfurt Zoo
Family Tropidophiidae (dwarf boas) - Terrazoo Rheinberg

New for the wild:
Family Alligatoridae (alligators, caimans) - Paraguay
Family Dactyloidae (anoles) – Dom Rep
Family Boidae (boas) – Dom Rep
Family Geoemydidae (asian river turtles and allies) – Costa Rica
Family Phrynosomatidae (horned lizards and allies) – Costa Rica
Family Corytophanidae (casquehead lizards) – Costa Rica
Family Teiidae (whiptails) – Costa Rica
Family Xantusiidae (night lizards) – Costa Rica
Family Viperidae (vipers) – Costa Rica
 
CarnotaurusSastrei said:
Order Testudines
Order Rhynchocephalia
Order Squamata
Order Crocodilia

Order Testudines (turtles, tortoises, terrapins)
Family Chelydridae (snapping turtles)
Family Emydidae (pond turtles, terrapins, sliders)
Family Testudinidae (tortoises)
Family Geoemydidae (asian river turtles and allies)
Family Platysternidae (big-headed turtle)
Family Carettochelyidae (pig-nosed turtle)
Family Trionychidae (softshell turtles)
Family Dermatemydidae (central american river turtle)
Family Kinosternidae (mud turtles, musk turtles)
Family Cheloniidae (sea turtles)
Family Dermochelyidae (leatherback sea turtle)
Family Chelidae (austro-american sideneck turtles)
Family Pelomedusidae (afro-american sideneck turtles)
Family Podocnemididae (madagascan big-headed turtle, american sideneck river turtles)

Order Rhynchocephalia (“beak-heads”)
Family Sphenodontidae (tuatara)

Order Squamata (scaled reptiles)
Family Dibamidae (blind lizards)
Family Gekkonidae (geckos)
Family Phyllodactylidae
Family Spaerodactylidae
Family Eublepharidae (eyelid geckos)
Family Pygopodidae (legless lizards)
Family Diplodactylidae (stone geckos)
Family Carphodactylidae (knob-tailed geckos)
Family Cordylidae (spinytail lizards)
Family Gerrhosauridae (plated lizards)
Family Scincidae (skinks)
Family Xantusiidae (night lizards)
Family Alopoglossidae
Family Gymnophthalmidae (spectacled lizards)
Family Teiidae (whiptails)
Family Lacertidae (true lizards)
Family Rhineuridae (north american worm lizards)
Family Amphisbaenidae (tropical worm lizards)
Family Trogonophidae (shorthead worm lizards)
Family Bipedidae (two-legged worm lizards)
Family Cadeidae (cuban worm lizards)
Family Blanidae (mediterranean worm lizards)
Family Agamidae (agamas)
Family Chamaeleonidae (chameleons)
Family Corytophanidae (casquehead lizards)
Family Crotaphytidae (collared lizards, leopard lizards)
Family Dactyloidae (anoles)
Family Hoplocercidae (wood lizards)
Family Iguanidae (iguanas)
Family Leiocephalidae (curlytail lizards)
Family Leiosauridae (leiosaurs)
Family Liolaemidae (south american swifts)
Family Opluridae (madagascan iguanas)
Family Phrynosomatidae (horned lizards and allies)
Family Polychrotidae (bush anoles)
Family Tropiduridae (neotropical ground lizards)
Family Anguidae (glass lizards and allies)
Family Anniellidae (american legless lizards)
Family Diploglossidae (galliwasps)
Family Xenosauridae (knob-scaled lizards)
Family Helodermatidae (gila monsters)
Family Shinisauridae (chinese crocodile lizard)
Family Lanthanotidae (earless monitor lizard)
Family Varanidae (monitor lizards)

Family Acrochordidae (file snakes)
Family Aniliidae (false coral snake)
Family Anomochilidae (dwarf pipe snakes)
Family Atractaspididae (stiletto snakes)
Family Boidae (boas)
Family Bolyeriidae (round island boa)
Family Colubridae (colubrids)
Family Cyclocoridae
Family Cylindrophiidae (asian pipe snakes)
Family Elapidae (elapids)
Family Homalopsidae (mudsnakes)
Family Lamprophiidae (lamprophiids)
Family Loxocemidae (mexican python)
Family Pareidae
Family Prosymnidae (african shovel-snout snakes)
Family Psammophiidae
Family Pseudaspididae
Family Pseudoxyrhophiidae (african sand snakes and relatives)
Family Pythonidae (pythons)
Family Tropidophiidae (dwarf boas)
Family Uropeltidae (shield-tailed snakes)
Family Viperidae (vipers)
Family Xenodermidae
Family Xenopeltidae (sunbeam snakes)
Family Xenophidiidae (spinejaw snakes)
Family Anomalepididae (primitive blind snakes)
Family Gerrhopilidae (indo-malayan blind snakes)
Family Leptotyphlopidae (slender blind snakes)
Family Typhlopidae (typical blind snakes)
Family Xenotyphlopidae (malagasy blind snakes)

Order Crocodilia (crocodilians)
Family Crocodylidae (crocodiles)
Family Alligatoridae (alligators, caimans)
Family Gavialidae (gharials)
Click to expand...
Probably about time that I finally update this list
Wild, Captive, Both

Order Testudines
Order Rhynchocephalia
Order Squamata
Order Crocodilia

Order Testudines (turtles, tortoises, terrapins)
Family Chelydridae (snapping turtles)
Family Emydidae (pond turtles, terrapins, sliders)
Family Testudinidae (tortoises)
Family Geoemydidae (asian river turtles and allies)
Family Platysternidae (big-headed turtle)
Family Carettochelyidae (pig-nosed turtle)
Family Trionychidae (softshell turtles)
Family Dermatemydidae (central american river turtle)
Family Kinosternidae (mud turtles, musk turtles)
Family Cheloniidae (sea turtles)
Family Dermochelyidae (leatherback sea turtle)
Family Chelidae (austro-american sideneck turtles)
Family Pelomedusidae (afro-american sideneck turtles)
Family Podocnemididae (madagascan big-headed turtle, american sideneck river turtles)

Order Rhynchocephalia (“beak-heads”)
Family Sphenodontidae (tuatara)

Order Squamata (scaled reptiles)
Family Dibamidae (blind lizards)
Family Gekkonidae (geckos)
Family Phyllodactylidae
Family Spaerodactylidae
Family Eublepharidae (eyelid geckos)
Family Pygopodidae (legless lizards)
Family Diplodactylidae (stone geckos)
Family Carphodactylidae (knob-tailed geckos)
Family Cordylidae (spinytail lizards)
Family Gerrhosauridae (plated lizards)
Family Scincidae (skinks)
Family Xantusiidae (night lizards)
Family Alopoglossidae
Family Gymnophthalmidae (spectacled lizards)
Family Teiidae (whiptails)
Family Lacertidae (true lizards)
Family Rhineuridae (north american worm lizards)
Family Amphisbaenidae (tropical worm lizards)
Family Trogonophidae (shorthead worm lizards)
Family Bipedidae (two-legged worm lizards)
Family Cadeidae (cuban worm lizards)
Family Blanidae (mediterranean worm lizards)
Family Agamidae (agamas)
Family Chamaeleonidae (chameleons)
Family Corytophanidae (casquehead lizards)
Family Crotaphytidae (collared lizards, leopard lizards)
Family Dactyloidae (anoles)
Family Hoplocercidae (wood lizards)
Family Iguanidae (iguanas)
Family Leiocephalidae (curlytail lizards)
Family Leiosauridae (leiosaurs)
Family Liolaemidae (south american swifts)
Family Opluridae (madagascan iguanas)
Family Phrynosomatidae (horned lizards and allies)
Family Polychrotidae (bush anoles)
Family Tropiduridae (neotropical ground lizards)
Family Anguidae (glass lizards and allies)
Family Anniellidae (american legless lizards)
Family Diploglossidae (galliwasps)
Family Xenosauridae (knob-scaled lizards)
Family Helodermatidae (gila monsters)
Family Shinisauridae (chinese crocodile lizard)
Family Lanthanotidae (earless monitor lizard)
Family Varanidae (monitor lizards)

Family Acrochordidae (file snakes)
Family Aniliidae (false coral snake)
Family Anomochilidae (dwarf pipe snakes)
Family Atractaspididae (stiletto snakes)
Family Boidae (boas)
Family Bolyeriidae (round island boa)
Family Colubridae (colubrids)
Family Cyclocoridae
Family Cylindrophiidae (asian pipe snakes)
Family Elapidae (elapids)
Family Homalopsidae (mudsnakes)
Family Lamprophiidae (lamprophiids)
Family Loxocemidae (mexican python)
Family Pareidae
Family Prosymnidae (african shovel-snout snakes)
Family Psammophiidae
Family Pseudaspididae
Family Pseudoxyrhophiidae (african sand snakes and relatives)
Family Pythonidae (pythons)
Family Tropidophiidae (dwarf boas)
Family Uropeltidae (shield-tailed snakes)
Family Viperidae (vipers)
Family Xenodermidae
Family Xenopeltidae (sunbeam snakes)
Family Xenophidiidae (spinejaw snakes)
Family Anomalepididae (primitive blind snakes)
Family Gerrhopilidae (indo-malayan blind snakes)
Family Leptotyphlopidae (slender blind snakes)
Family Typhlopidae (typical blind snakes)
Family Xenotyphlopidae (malagasy blind snakes)

Order Crocodilia (crocodilians)
Family Crocodylidae (crocodiles)
Family Alligatoridae (alligators, caimans)
Family Gavialidae (gharials)
 
Figured I'd participate since I recently filled out the fish one:

Wild, Captive, Both

Order Testudines
Order Rhynchocephalia
Order Squamata
Order Crocodilia

Order Testudines (turtles, tortoises, terrapins)
Family Chelydridae (snapping turtles)
Family Emydidae (pond turtles, terrapins, sliders)
Family Testudinidae (tortoises)
Family Geoemydidae (asian river turtles and allies)
Family Platysternidae (big-headed turtle)
Family Carettochelyidae (pig-nosed turtle)
Family Trionychidae (softshell turtles)
Family Dermatemydidae (central american river turtle)
Family Kinosternidae (mud turtles, musk turtles)
Family Cheloniidae (sea turtles)
Family Dermochelyidae (leatherback sea turtle)
Family Chelidae (austro-american sideneck turtles)
Family Pelomedusidae (afro-american sideneck turtles)
Family Podocnemididae (madagascan big-headed turtle, american sideneck river turtles)

Order Rhynchocephalia (“beak-heads”)
Family Sphenodontidae (tuatara)

Order Squamata (scaled reptiles)
Family Dibamidae (blind lizards)
Family Gekkonidae (geckos)
Family Phyllodactylidae
Family Sphaerodactylidae
Family Eublepharidae (eyelid geckos)
Family Pygopodidae (legless lizards)
Family Diplodactylidae (stone geckos)
Family Carphodactylidae (knob-tailed geckos)
Family Cordylidae (spinytail lizards)
Family Gerrhosauridae (plated lizards)
Family Scincidae (skinks)
Family Xantusiidae (night lizards)
Family Alopoglossidae
Family Gymnophthalmidae (spectacled lizards)
Family Teiidae (whiptails)
Family Lacertidae (true lizards)
Family Rhineuridae (north american worm lizards)
Family Amphisbaenidae (tropical worm lizards)
Family Trogonophidae (shorthead worm lizards)
Family Bipedidae (two-legged worm lizards)
Family Cadeidae (cuban worm lizards)
Family Blanidae (mediterranean worm lizards)
Family Agamidae (agamas)
Family Chamaeleonidae (chameleons)
Family Corytophanidae (casquehead lizards)
Family Crotaphytidae (collared lizards, leopard lizards)
Family Dactyloidae (anoles)
Family Hoplocercidae (wood lizards)
Family Iguanidae (iguanas)
Family Leiocephalidae (curlytail lizards)
Family Leiosauridae (leiosaurs)
Family Liolaemidae (south american swifts)
Family Opluridae (madagascan iguanas)
Family Phrynosomatidae (horned lizards and allies)
Family Polychrotidae (bush anoles)
Family Tropiduridae (neotropical ground lizards)
Family Anguidae (glass lizards and allies)
Family Anniellidae (american legless lizards)
Family Diploglossidae (galliwasps)
Family Xenosauridae (knob-scaled lizards)
Family Helodermatidae (gila monsters)
Family Shinisauridae (chinese crocodile lizard)
Family Lanthanotidae (earless monitor lizard)
Family Varanidae (monitor lizards)

Family Acrochordidae (file snakes)
Family Aniliidae (false coral snake)
Family Anomochilidae (dwarf pipe snakes)
Family Atractaspididae (stiletto snakes)
Family Boidae (boas)
Family Bolyeriidae (round island boa)
Family Colubridae (colubrids)
Family Cyclocoridae
Family Cylindrophiidae (asian pipe snakes)
Family Elapidae (elapids)
Family Homalopsidae (mudsnakes)
Family Lamprophiidae (lamprophiids)
Family Loxocemidae (mexican python)
Family Pareidae
Family Prosymnidae (african shovel-snout snakes)
Family Psammophiidae
Family Pseudaspididae
Family Pseudoxyrhophiidae (african sand snakes and relatives)
Family Pythonidae (pythons)
Family Tropidophiidae (dwarf boas)
Family Uropeltidae (shield-tailed snakes)
Family Viperidae (vipers)
Family Xenodermidae
Family Xenopeltidae (sunbeam snakes)
Family Xenophidiidae (spinejaw snakes)
Family Anomalepididae (primitive blind snakes)
Family Gerrhopilidae (indo-malayan blind snakes)
Family Leptotyphlopidae (slender blind snakes)
Family Typhlopidae (typical blind snakes)
Family Xenotyphlopidae (malagasy blind snakes)

Order Crocodilia (crocodilians)
Family Crocodylidae (crocodiles)
Family Alligatoridae (alligators, caimans)
Family Gavialidae (gharials)
 
Update to my list

Order Testudines (turtles, tortoises, terrapins)
Family Chelydridae (snapping turtles)
Family Emydidae (pond turtles, terrapins, sliders)
Family Testudinidae (tortoises)
Family Geoemydidae (asian river turtles and allies)
Family Platysternidae (big-headed turtle)
Family Carettochelyidae (pig-nosed turtle)
Family Trionychidae (softshell turtles)
Family Dermatemydidae (central american river turtle)
Family Kinosternidae (mud turtles, musk turtles)
Family Cheloniidae (sea turtles)
Family Dermochelyidae (leatherback sea turtle)
Family Chelidae (austro-american sideneck turtles)
Family Pelomedusidae (afro-american sideneck turtles)
Family Podocnemididae (madagascan big-headed turtle, american sideneck river turtles)


Order Rhynchocephalia (“beak-heads”)
Family Sphenodontidae (tuatara)


Order Squamata (scaled reptiles)
Family Dibamidae (blind lizards)
Family Gekkonidae (geckos)
Family Phyllodactylidae
Family Spaerodactylidae
Family Eublepharidae (eyelid geckos)
Family Pygopodidae (legless lizards)
Family Diplodactylidae (stone geckos)
Family Carphodactylidae (knob-tailed geckos)
Family Cordylidae (spinytail lizards)
Family Gerrhosauridae (plated lizards)
Family Scincidae (skinks)
Family Xantusiidae (night lizards)
Family Alopoglossidae
Family Gymnophthalmidae (spectacled lizards)
Family Teiidae (whiptails)
Family Lacertidae (true lizards)
Family Rhineuridae (north american worm lizards)
Family Amphisbaenidae (tropical worm lizards)
Family Trogonophidae (shorthead worm lizards)
Family Bipedidae (two-legged worm lizards)
Family Cadeidae (cuban worm lizards)
Family Blanidae (mediterranean worm lizards)
Family Agamidae (agamas)
Family Chamaeleonidae (chameleons)
Family Corytophanidae (casquehead lizards)
Family Crotaphytidae (collared lizards, leopard lizards)
Family Dactyloidae (anoles)
Family Hoplocercidae (wood lizards)
Family Iguanidae (iguanas)
Family Leiocephalidae (curlytail lizards)
Family Leiosauridae (leiosaurs)
Family Liolaemidae (south american swifts)
Family Opluridae (madagascan iguanas)
Family Phrynosomatidae (horned lizards and allies)
Family Polychrotidae (bush anoles)
Family Tropiduridae (neotropical ground lizards)
Family Anguidae (glass lizards and allies)
Family Anniellidae (american legless lizards)
Family Diploglossidae (galliwasps)
Family Xenosauridae (knob-scaled lizards)
Family Helodermatidae (gila monsters)
Family Shinisauridae (chinese crocodile lizard)
Family Lanthanotidae (earless monitor lizard)
Family Varanidae (monitor lizards)

Family Acrochordidae (file snakes)
Family Aniliidae (false coral snake)
Family Anomochilidae (dwarf pipe snakes)
Family Atractaspididae (stiletto snakes)
Family Boidae (boas)
Family Bolyeriidae (round island boa)
Family Colubridae (colubrids)
Family Cyclocoridae
Family Cylindrophiidae (asian pipe snakes)
Family Elapidae (elapids)
Family Homalopsidae (mudsnakes)
Family Lamprophiidae (lamprophiids)
Family Loxocemidae (mexican python)
Family Pareidae
Family Prosymnidae (african shovel-snout snakes)
Family Psammophiidae
Family Pseudaspididae
Family Pseudoxyrhophiidae (african sand snakes and relatives)
Family Pythonidae (pythons)
Family Tropidophiidae (dwarf boas)
Family Uropeltidae (shield-tailed snakes)
Family Viperidae (vipers)
Family Xenodermidae
Family Xenopeltidae (sunbeam snakes)
Family Xenophidiidae (spinejaw snakes)
Family Anomalepididae (primitive blind snakes)
Family Gerrhopilidae (indo-malayan blind snakes)
Family Leptotyphlopidae (slender blind snakes)
Family Typhlopidae (typical blind snakes)
Family Xenotyphlopidae (malagasy blind snakes)


Order Crocodilia (crocodilians)
Family Crocodylidae (crocodiles)
Family Alligatoridae (alligators, caimans)
Family Gavialidae (gharials)*

*assuming we're following recent taxonomic changes placing the False Gharial in Gavialidae rather than Crocodylidae - if not, I have not seen Gavialidae
 
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