THE LIZARDS 



103 



Number 



of 

 species 

 Genus Arteritis 1 species 



Family Anniellidce : Represented 

 by a single, worm-like species. 



Genus A nniella 1 species 



Family Helodermatidce : The 

 Beaded Lizards. The only 

 known poisonous lacertilians. 

 Genus Heloderma 2 species 



Genus Lanthanotus 1 species 



Family Varanidce: The Monitors. 

 The largest known species of 

 lizards. All of the Old World. 

 Genus Varanus 27 species 



Family Xantusiidce : Small, New 

 World lizards. 



Genus Lepidophyma 1 species 



Genus Xantusia 5 species 



Genus Cricosaura 1 species 



Family Teiidce: New World liz- 

 ards. 



Genus Tupinambis 3 species 



Genus Draccena 1 species 



Genus C entropy x 5 species 



Genus Monoplocus 1 species 



Genus Ameiva 19 species 



Genus Cnemidophorus 10 species 



Genus Callopistes 2 species 



Genus Dicrodon 2 species 



Genus Teius 1 species 



Genus Crocodilurus 1 species 



Genus Neusticurus 2 species 



Genus Alopoglossus 3 species 



Genus Leposoma 2 species 



Genus Loxopholis 1 species 



Genus Pantodactylus 1 species 



Genus Arthrosaura 1 species 



Genus Prionodactylus 5 species 



Genus Cercosaura 1 species 



Genus Placosoma 1 species 



Distribution 



Europe; Western Asia and 

 Northern Africa. 



Extreme Western U. S. 



S. W. United States; Western 

 Mexico. 

 Borneo. 



Southern Asia; Malaysia; Af- 

 rica and Australia. 



Central America. 

 California; Arizona. 

 Cuba. 



South America; West Indies. 



South America. 



South America. 



Western Ecuador. 



Central Amer.; So. Amer. and 



West Indies. 

 U. S.; Mexico; Cent, and So. 



Amer. 

 Peru. 



Peru; Chili. 

 S. E. South America. 

 Tropical South America. 

 Tropical South America. 

 Ecuador; Peru. 

 Brazil; Colombia. 

 Colombia. 



S. E. South America. 

 Ecuador. 

 Brazil. 

 Brazil. 

 Brazil. 



