38 THE VERTEBRATE SKELETON. 



Family Agamidae. Draco flying lizard. 



Agama. 



Family Iguanidae. Iguana. 

 Family Anguidae. Ophisaurus (Bipes, Pseudopus). 



Anguis blindworm. 



Family Varanidae. Yaranus monitor. 

 Family Amphisbaenidae. Chirotes. 



Amphisbaena. 



Family Scincidae. Tiliqua (Cyclodus). 

 Scincus skink. 

 Chalcides (Seps). 



Group Rhiptoglossa. 

 Family Chamaeleonidae. Chamaeleon. 



Suborder (2). OPHIDIA. 



Family Typhlopidae. Typhlops blind snake. 

 Family Boidae. Python. 



Family Colubridae. Tropidonotus ringed snake. 

 Family Hydrophidae sea snakes. 

 Family Crotalidae. Crotalus rattlesnake. 



Suborder (3). PYTHONOMORPHA. 

 Family Mosasauridae. Mosasaurus. 



Order 7. DINOSAURIA. 

 Suborder (1). SAUROPODA. 

 Family Atlantosauridae. Brontosaurus. 

 Family Cetiosauridae. Morosaurus. 



Suborder (2). THEROPODA. 



Family Megalosauridae. Megalosaurus (Ceratosaurus). 

 Family Compsognathidae. Compsognathus. 



