46 THE VERTEBRATE SKELETON. 



Section (d). RUMINANTIA or PECORA. 



Family Cervidae. Moschus musk deer. 

 Cervus deer. 

 Cervulus muntjac. 

 Hydropotes Chinese water deer. 

 Family Giraffidae. Giraffa giraffe. 



iSivatherium. 



Family Antilocapridae. Antilocapra prongbuck. 

 Family Bovidae. Tetraceros four-horned antelope. 

 Gazella gazelle. 

 Bos ox. 

 Bison. 

 Bubalus buffalo. 



Suborder (2). PERISSODACTYLA. 

 Family Tapiridae. Tapirus tapir. 

 Family Lophiodontidae. Lophiodon. 



Hyracotherium. 



Family Palaeotheriidae. Palaeotherium. 

 Family Equidae. Hipparion. 



Equus horse. 

 Family Rhinoeerotidae. Rhinoceros. 



Elasmotherium. 

 Family Titanotheriidae. Titanotherium (Brontops). 



Palaeosyops. 



Family Chalicotheriidae. Chalicotherium. 

 Family Macraucheniidae. Macrauchenia. 



Division B. SUBUNGULATA. 



Suborder (1). TOXODONTIA. 

 Family Astrapotheriidae. Astrapotherium. 

 Family Nesodontidae. Nesodon. 

 Family Toxodontidae. Toxodon. 

 Family Typotheriidae. Typotkerium. 



