Lizards, Snakes and Their Relatives

Common Name	Scientific Name	Group
Tuatara • head (adult)	Sphenodon punctatus	Rhynchocephalians
Tuatara • head (juvenile)	Sphenodon punctatus	Rhynchocephalians
Fossil Archosauromorph • skull	Prolacerta broomi^†	Rhynchocephalians
Madtsoiid Snake • braincase	Menarana nosymena^†	Scleroglossans
Common Kingsnake • egg (skull)	Lampropeltis getula	Scleroglossans
Common Kingsnake • egg (whole)	Lampropeltis getula	Scleroglossans
Sunbeam Snake • head	Xenopeltis unicolor	Scleroglossans
Ground Snake • head	Sonora semiannulata	Scleroglossans
Hampton's Slug Snake • head	Pareas hamptoni	Scleroglossans
Rusty-topped Delma • head	Delma borea	Scleroglossans
Príncipe Burrowing Skink • head	Feylinia polylepis	Scleroglossans
New Guinea Blind 'Skink' • head	Dibamus novaeguineae	Scleroglossans
Microteiid • head	Colobosaura modesta	Scleroglossans
Grass Lizard • head	Takydromus ocellatus	Scleroglossans
Solomons Skink • head	Sphenomorphus solomonis	Scleroglossans
Four-toed Worm Lizard • head	Bipes canaliculatus	Scleroglossans
Haitian Dwarf Boa • head	Tropidophis haetianus	Scleroglossans
Smith's Tropical Night Lizard • head	Lepidophyma smithii	Scleroglossans
Emperor Flat Lizard • head	Platysaurus imperator	Scleroglossans
Southern Long-tailed Lizard • head	Latastia longicaudata	Scleroglossans
Sand Monitor • head	Varanus gouldii	Scleroglossans
European Legless Lizard • head	Ophisaurus apodus	Scleroglossans
Desert Night Lizard • head	Xantusia vigilis	Scleroglossans
Five-lined Skink • head	Eumeces fasciatus	Scleroglossans
Round-snouted Worm Lizard • head	Loveridgea ionidesii	Scleroglossans
Knob-tailed Gecko • head	Nephrurus levis	Scleroglossans
Dwarf Tegu • head	Callopistes maculatus	Scleroglossans
Common Boa Constrictor • head	Boa constrictor	Scleroglossans
Lined Day Gecko • head	Phelsuma lineata	Scleroglossans
Short-legged Skink • head	Brachymeles gracilis	Scleroglossans
Knob-scaled Lizard • head	Xenosaurus grandis	Scleroglossans
Dwarf Pipe Snake • head	Anomochilus leonardi	Scleroglossans
Puff-faced Water Snake • head	Homalopsis buccata	Scleroglossans
Checkered Keelback Snake • head	Xenochrophis piscator	Scleroglossans
Banded Sea Krait • head	Laticauda colubrina	Scleroglossans
Broad-banded Copperhead • head	Agkistrodon contortrix	Scleroglossans
Savannah Monitor • head	Varanus exanthematicus	Scleroglossans
Cape Wolf Snake • head	Lycophidion capense	Scleroglossans
Jamaican Blind Snake • head	Typhlops jamaicensis	Scleroglossans
Burton's Legless Lizard • head	Lialis burtonis	Scleroglossans
Gargoyle Gecko • head	Rhacodactylus auriculatus	Scleroglossans
Percival's Legless Skink • head	Acontias percivali	Scleroglossans
Bezy's Night Lizard • head	Xantusia bezyi	Scleroglossans
Ridge-tail Monitor • head	Varanus acanthurus	Scleroglossans
Florida Worm Lizard • head	Rhineura floridana	Scleroglossans
Oaxacan Dwarf Boa • head	Exiliboa placata	Scleroglossans
White-nosed Blind Snake • head	Liotyphlops albirostris	Scleroglossans
Woodmason's Earth Snake • head	Uropeltis woodmasoni	Scleroglossans
African Brown Water Snake • head	Afronatrix anoscopus	Scleroglossans
Granite Night Lizard • head	Xantusia henshawi	Scleroglossans
Island Night Lizard • head	Xantusia riversiana	Scleroglossans
Ocellated Skink • head	Chalcides ocellatus	Scleroglossans
Tanganyika Wedge-snouted Worm Lizard • head	Geocalamus acutus	Scleroglossans
Texas Blind Snake • head	Leptotyphlops dulcis	Scleroglossans
Southern Alligator Lizard • head	Elgaria multicarinata	Scleroglossans
Galliwasp • head	Celestus enneagrammus	Scleroglossans
Yellow-headed Gecko • head	Gonatodes albogularis	Scleroglossans
Bluetongue Skink • head	Tiliqua scincoides	Scleroglossans
Giant Amphisbaena • head	Amphisbaena alba	Scleroglossans
Calabar Ground 'Python' • head	Calabaria reinhardtii	Scleroglossans
African House Snake • head	Lamprophis fuliginosus	Scleroglossans
Ringneck Snake • head	Diadophis punctatus	Scleroglossans
Coral Snake • head	Micrurus fulvius	Scleroglossans
Central American Fer-de-lance • head	Bothrops asper	Scleroglossans
Red Pipe Snake • head	Anilius scytale	Scleroglossans
Leopard Gecko • head	Eublepharis macularius	Scleroglossans
Flame Belly Armadillo Lizard • head	Cordylus mossambicus	Scleroglossans
Rosy Boa • head	Lichanura trivirgata	Scleroglossans
Round Island Boa • head	Casarea dussumieri	Scleroglossans
Texas Alligator Lizard • head	Gerrhonotus infernalis	Scleroglossans
Schneider's Skink • head	Eumeces (Novoeumeces) schneideri	Scleroglossans
Sonoran Night Lizard • head	Xantusia sonora	Scleroglossans
Mottled Amphisbaena • head	Amphisbaena fuliginosa	Scleroglossans
Checkerboard Worm Lizard • head	Trogonophis wiegmanni	Scleroglossans
Banana Boa • head	Ungaliophis continentalis	Scleroglossans
Dwarf Plated Lizard • head	Cordylosaurus subtessellatus	Scleroglossans
Trinidad Blind Snake • head	Typhlophis squamosus	Scleroglossans
Tree Skink • head	Egernia striolata	Scleroglossans
Rainbow Skink • head	Trachylepis quinquetaeniata	Scleroglossans
Brahminy Blind Snake • head	Ramphotyphlops braminus	Scleroglossans
Cuban Night Lizard • head	Cricosaura typica	Scleroglossans
Black-lined Plated Lizard • head	Gerrhosaurus nigrolineatus	Scleroglossans
Malagasy Plated Lizard • head	Tracheloptychus petersi	Scleroglossans
Smallhead Worm Lizard • head	Leposternon microcephalum	Scleroglossans
Cat Gecko • head	Aeluroscalabotes felinus	Scleroglossans
Black-headed Python • head	Aspidites melanocephalus	Scleroglossans
East African Sand Boa • head	Eryx colubrinus	Scleroglossans
Spiny-tailed Gecko • head	Diplodactylus ciliaris	Scleroglossans
Zarudnyi's Worm Lizard • head	Diplometopon zarudnyi	Scleroglossans
Microteiid • head	Pholidobolus montium	Scleroglossans
Common Tegu • head	Tupinambis teguixin	Scleroglossans
Mexican Dibamid • head	Anelytropsis papillosus	Scleroglossans
Racer • head	Coluber constrictor	Scleroglossans
Grass Snake • head	Natrix natrix	Scleroglossans
Eastern Hognose Snake • head	Heterodon platirhinos	Scleroglossans
Indian Cobra • head	Naja naja	Scleroglossans
Bushmaster • head	Lachesis muta	Scleroglossans
Common Night Adder • head	Causus rhombeatus	Scleroglossans
Haitian Boa • head	Chilabothrus striatus	Scleroglossans
Striped Keelback • head	Amphiesma stolata	Scleroglossans
Beaded Lizard • head	Heloderma horridum	Scleroglossans
North African Sandfish • head	Scincus scincus	Scleroglossans
California Legless Lizard • head	Anniella pulchra	Scleroglossans
Ornate Girdled Lizard • head	Zonosaurus ornatus	Scleroglossans
Green Lizard • head	Lacerta viridis	Scleroglossans
Magdalena Night Lizard • head	Xantusia magdalena	Scleroglossans
Gaige's Tropical Night Lizard • head	Lepidophyma gaigeae	Scleroglossans
Baja Worm Lizard • head	Bipes biporus	Scleroglossans
Red-tailed Pipe Snake • head	Cylindrophis ruffus	Scleroglossans
Gray's Earth Snake • head	Rhinophis (Uropeltis) melanogaster	Scleroglossans
Egyptian Cobra • head	Naja haje	Scleroglossans
Neon Blue Tailed Tree Lizard • head	Holaspis guentheri	Scleroglossans
African Fat-tailed Gecko • head	Hemitheconyx caudicinctus	Scleroglossans
Yellow-spotted Night Lizard • head	Lepidophyma flavimaculatum	Scleroglossans
Western Banded Gecko • head	Coleonyx variegatus	Scleroglossans
Keel-headed Worm Lizard • head	Anops kingii	Scleroglossans
Burmese Python • head	Python molurus	Scleroglossans
Western Whiptail • head	Aspidoscelis tigris	Scleroglossans
Mole Viper • head	Atractaspis irregularis	Scleroglossans
Pale-sided Skink • head	Eugongylus rufescens	Scleroglossans
Northern Leaf-tailed Gecko • head	Phyllurus cornutus	Scleroglossans
Tokay Gecko • head	Gekko gecko	Scleroglossans
Water Skink • head	Amphiglossus splendidus	Scleroglossans
Water Monitor • head	Varanus salvator	Scleroglossans
Whiptail Lizard • head	Teius teyou	Scleroglossans
Checkered Garter Snake • head	Thamnophis marcianus	Scleroglossans
Lyre Snake • head	Trimorphodon biscutatus	Scleroglossans
New World Sunbeam Snake • head	Loxocemus bicolor	Scleroglossans
Chinese Crocodile Lizard • head (adult)	Shinisaurus crocodilurus	Scleroglossans
Desert Plated Lizard • head (adult)	Angolosaurus skoogi	Scleroglossans
Gila Monster • head (adult)	Heloderma suspectum	Scleroglossans
Common Kingsnake • head (adult)	Lampropeltis getula	Scleroglossans
Earless Monitor • head (FMNH)	Lanthanotus borneensis	Scleroglossans
Chinese Crocodile Lizard • head (juvenile)	Shinisaurus crocodilurus	Scleroglossans
Desert Plated Lizard • head (juvenile)	Angolosaurus skoogi	Scleroglossans
Gila Monster • head (juvenile)	Heloderma suspectum	Scleroglossans
Durango Night Lizard • head (paratype)	Xantusia 'extorris'	Scleroglossans
Earless 'Monitor' • head (YPM)	Lanthanotus borneensis	Scleroglossans
Mosasaur • skull	Plotosaurus bennisoni	Scleroglossans
Fossil Amphisbaenian • skull	Spathorhynchus fossorium^†	Scleroglossans
Sudan Plated Lizard • skull	Gerrhosaurus major	Scleroglossans
Cretaceous Gekkonomorph • skull	Norellius nyctisaurops^†	Scleroglossans
Fossil Scincomorph • skull	Parmeosaurus scutatus^†	Scleroglossans
Fossil Amphisbaenian • skull	Dyticonastis rensbergeri^†	Scleroglossans
Fossil Gila Monster • skull	Heloderma texana^†	Scleroglossans
Fossil Helodermatid • skull	Gobiderma pulchrum^†	Scleroglossans
Fossil Gekkotan • skull	Gobekko cretacicus^†	Scleroglossans
Fossil Teiid • skull	Pyramicephalosaurus cherminicus^†	Scleroglossans
Fossil Gekkotan • skull	Gobekko cretacicus^†	Scleroglossans
Fossil Worm Lizard • skull	Rhineura hatcherii^†	Scleroglossans
Fossil Anguid • skull (13870)	Peltosaurus granulosus^†	Scleroglossans
Fossil Anguid • skull (27072)	Peltosaurus granulosus^†	Scleroglossans
Fossil Anguid • skull (8138)	Peltosaurus granulosus^†	Scleroglossans
Fossil Anguid • skull (CM 1050)	Helodermoides tuberculatus^†	Scleroglossans
Fossil Anguid • skull (CM 51344)	Helodermoides tuberculatus^†	Scleroglossans
Fossil Snake with Legs • skull (holotype)	Pachyrhachis problematicus^†	Scleroglossans
'Necrosaur' • skull (holotype)	Eosaniwa koehni^†	Scleroglossans
Fossil Anguid • skull (USNM 13861)	Helodermoides tuberculatus^†	Scleroglossans
Fossil Snake • vertebra	Indophis fanambinana^†	Scleroglossans
Brahminy Blind Snake • whole	Ramphotyphlops braminus	Scleroglossans
Mosasauroid Lizard • whole (holotype)	Kaganaias hakusanensis^†	Scleroglossans
Gila Monster • whole (juvenile)	Heloderma suspectum	Scleroglossans
Mexican Horned Lizard • embryo	Phrynosoma taurus	Iguanians
Desert Iguana • head	Dipsosaurus dorsalis	Iguanians
Coast Horned Lizard • head	Phrynosoma coronatum	Iguanians
Short-horned Lizard • head	Phrynosoma hernandesi	Iguanians
Flat-tailed Horned Lizard • head	Phrynosoma mcallii	Iguanians
Fiji Banded Iguana • head	Brachylophus fasciatus	Iguanians
Helmeted Basilisk • head	Corytophanes cristatus	Iguanians
Side-blotched Lizard • head	Uta stansburiana	Iguanians
Ringed Spinytail Iguana • head	Morunasaurus annularis	Iguanians
Mojave Fringe-toed Lizard • head	Uma scoparia	Iguanians
Matuasto • head	Leiosaurus catamarcensis	Iguanians
Brown Tree Climber Lizard • head	Uranoscodon superciliosus	Iguanians
Five-banded Gliding Lizard • head	Draco quinquefasciatus	Iguanians
Texas Horned Lizard • head	Phrynosoma cornutum	Iguanians
Long-nosed Leopard Lizard • head	Gambelia wislizenii	Iguanians
Regal Horned Lizard • head	Phrynosoma solare	Iguanians
Round-tailed Horned Lizard • head	Phrynosoma modestum	Iguanians
Veiled Chameleon • head	Chamaeleo calyptratus	Iguanians
Forest Crested Lizard • head	Calotes emma	Iguanians
Amazon Wood Lizard • head	Enyalioides laticeps	Iguanians
Bush Anole • head	Pristidactylus torquatus	Iguanians
Bush Anole • head	Polychrus marmoratus	Iguanians
Brazilian Steppe Iguana • head	Urostrophus vautieri	Iguanians
Curly-tailed Lizard • head	Leiocephalus barahonensis	Iguanians
Three-eyed Lizard • head	Chalarodon madagascariensis	Iguanians
Malayan Butterfly Lizard • head	Leiolepis triploida	Iguanians
Short-tailed Horned Lizard • head	Phrynosoma braconnieri	Iguanians
Chihuahua Desert Horned Lizard • head	Phrynosoma orbiculare	Iguanians
Pygmy Short-horned Lizard • head	Phrynosoma douglassii	Iguanians
Red-headed Agama • head	Agama agama	Iguanians
Brygoo's Chameleon • head	Brookesia brygooi	Iguanians
Dwarf Chilean Chuckwalla • head	Phymaturus palluma	Iguanians
Leaf Lizard • head	Stenocercus guentheri	Iguanians
Rose-bellied Lizard • head	Sceloporus variabilis	Iguanians
Bearded Dragon • head	Pogona vitticeps	Iguanians
Madagascar Swift • head	Oplurus cyclurus	Iguanians
Tree Iguana • head	Liolaemus bellii	Iguanians
Mexican Horned Lizard • head	Phrynosoma taurus	Iguanians
Thorny Devil • head	Moloch horridus	Iguanians
Long-spined Horned Lizard • head	Phrynosoma asio	Iguanians
Rock Horned Lizard • head	Phrynosoma ditmarsi	Iguanians
Desert Horned Lizard • head	Phrynosoma platyrhinos	Iguanians
Green Anole • head	Anolis carolinensis	Iguanians
Jesus Christ Lizard • head	Basiliscus basiliscus	Iguanians
Banded Rock Lizard • head	Petrosaurus mearnsi	Iguanians
Collared Lizard • head	Crotaphytus collaris	Iguanians
Collared Tree Lizard • head	Plica plica	Iguanians
Butterfly Lizard • head	Leiolepis belliana	Iguanians
Chinese Water Dragon • head	Physignathus cocincinus	Iguanians
Egyptian Spiny-tailed Lizard • head	Uromastyx aegyptius	Iguanians
Smooth Chameleon • head	Chamaeleo laevigatus	Iguanians
Fossil Iguanid • skull	Ctenomastax parva^†	Iguanians
Fossil Iguanian • skull	Isodontosaurus gracilis^†	Iguanians
Fossil Corytophanid • skull	Aciprion formosum^†	Iguanians
Fossil Iguanid • skull	Temujinia ellisoni^†	Iguanians
Common Chuckwalla • Skull	Sauromalus ater	Iguanians
Fossil Iguanid • skull	Zapsosaurus sceliphros	Iguanians
Fossil Iguanian • skull	Arretosaurus ornatus^†	Iguanians
Mexican Spinytail Iguana • skull	Ctenosaura pectinata	Iguanians
Indian Spiny-tailed Lizard • skull	Uromastyx hardwickii	Iguanians
Fossil Iguanid • skull	Polrussia mongoliensis^†	Iguanians
Anolis Lizard in Amber • skull in amber	Anolis sp.	Iguanians
Veiled Chameleon • upper body	Chamaeleo calyptratus	Iguanians
Texas Horned Lizard • whole	Phrynosoma cornutum	Iguanians
Flat-tailed Horned Lizard • whole	Phrynosoma mcallii	Iguanians
Mexican Horned Lizard • whole	Phrynosoma taurus	Iguanians
Thorny Devil • whole	Moloch horridus	Iguanians
Western Fence Lizard • whole (hatchling)	Sceloporus occidentalis	Iguanians

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