Studied by 24 people
completed species have family and subfamily (when applicable) some spelling may be off (I am not good at it :))
alligatoridae
gavialide
crocodylidae
Chelidae
Pelomedusidae
Chelydridae
Trionychidae
Cheloniidae
Dermochelyidae
Kinosternidae
Platysternidae
Geoemydidae
Actinemys marmorata
Emydidae
Trachemys scripta
Emydidae
Gopherus agassizii
Testudinidae
phyllodactylidae
Xantusia vigilis
xantusiidae
lacertidae
Crotaphytus bicinctores
crotaphytidae
Sauromalus ater
iguanidae
agamidae
chamaeleonidae
varanidae
Elgaria coerula
anguidae
Anniella pulchra
anniellidae
Gila monster
helodermatidae
Gambelia sila
Crotaphytidae
Gambelia wislizenii
Crotaphytidae
Callisaurus draconoides
Phyrnosomatidae
Uma scoparia
Phyrnosomatidae
Uma inornata
Phyrnosomatidae
Uma notata
Phyrnosomatidae
Sceloporus graciosus
Phyrnosomatidae
Sceloporus magister
Phyrnosomatidae
Sceloporus occidentalis
Phyrnosomatidae
Uta stansburiana
Phyrnosomatidae
Phrynosoma blainvilli
Phrynosomatidae
Urosaurus graciosus
Phrynosomatidae
Phrynosoma douglasii
Phrynosomatidae
Phrynosoma mcalli
Phrynosomatidae
Phrynosoma platyrhinos
Phrynosomatidae
Elgaria multicarinata
anguidae
Hemidactylus turcicus
Gekkonidae
Phyllodactylus xanti
Phyllodactylidae
Coleonyx variegatus
Eublepharidae
Plestiodon gilberiti
Scincidae
pink tail in juvenile
Plestiodon skiltonianus
Scincidae
blue tail in juvenile
Diposaurus dorsalis
Iguanidae
Aspidoscelis tigris
Teiidae
Homalopsidae
Acrochorididae
pythonidae
boidae
Rena humilis
leptotyphlopidae
tropidophiidae
cylindrophiidae
xenopeltidae
iridescent, pointed snout
uropeltidae
iridescent, modified tail (keratinous shield)
Charina bottae
Boidae
Lichanura trivirgata
Boidae
Crotalus atrox
Viperidae
Crotalinae
white stripe from corner of eye past mouth
Crotalus cerastes
Viperidae
Crotalinae
horns above the eye
Crotalus oreganus
Viperidae
Crotalinae
Crotalus mitchellii
Viperidae
Crotalinae
Crotalus ruber
Viperidae
Crotalinae
white stripe stops at the mouth
Crotalus scutulatus
Viperidae
Crotalinae
Arizona elegans
Colubridae
smooth scales
Chionactis occipitalis
Colubridae
overbite, small nose and head
Coluber constrictor
Colubridae
Coluber flagellum
Colubridae
Coluber lateralis
Colubridae
Coluber taeniatus
Colubridae
Lampropeltis californiae
Colubridae
Lampropeltis zonata
Colubridae
Phyllorhynchus decurtatus
Colubridae
Pituophis catenifer
Colubridae
keeled scales
Rhinocheilus lecontei
Colubridae
overbite
Tantilla planiceps
Colubridae
Trimorphodon biscutatus
Colubridae
Diadophis punctatus
Colubridae
Hypsiglena torquata
Colubridae
Contia tenuis
Colubridae
Thamnophis atratus
Colubridae
8 upper labial scale that are equal
Thamnophis couchii
Colubridae
6-7 labial scales elevated
Thamnophis elegans
Colubridae
chin shield scales equal
Thamnophis sirtalis
Colubridae
7 upper labial scales
Nerodia fasciata
Colubridae
Nerodia sipedon
Colubridae
Hydrophis platura
Elapidae
Salvadora hexalepis
Colubridae
Note 
Flashcard (51)