CATALOGUE 



M A M M A L I A. 



Class 1. MAMMALIA. 



Vertebrate animals, more or less covered witli hair, and furnished 

 with milk-giving mammaiy glands ; respiring by lungs ; having a 

 heart with two ventricles and two auricles, circulating warm blood, 

 enclosed in a thorax, separated from the abdominal viscera by a 

 chaphragm ; \i\'iparous ; the young noui'ished with milk. 



Synopsis of Oedees. 



I. Quadrupeds, or bipeds, with the fingers and toes elongate, Jlexible, and 



armed with claws or nails. Unguiciilata. 



Order I. Primates. Teeth of three sorts. Thumb and great toe 

 opposable to the fingers or toes. Teats pectoral. Penis fi-ee. 



Order II. Feh^. Teeth of three sorts. Thumb not opposable. Teats 

 veuti'al. Penis in a sheath. 



Order III. Gliees. Teeth of two sorts ; cutting-teeth lai-ge ; canines 

 wanting. Penis in a sheath. Teats ventral. 



II. Quadrupeds, tcith the toes short, enclosed in the skin and armed tcith 



hoofs. Ungulata. 



Order IV. Bbuta. Teeth all of one kind or entirely wanting. Hoof 

 often compressed, elongate. 



Order V. Pecoha. Teeth of two or three kinds. Stomach complicated. 

 Front of upper jaw toothless, callous. Toes in pairs. Hoofs 

 triangular. 



Order VI. Belluje. Teeth of three kinds. Stomach simple. Upper 

 cutting-teeth distinct. Skin thick, ueai-ly naked. Hoofs triangular or 

 nail-like. 



III. Limbs Jin-like. Body elongate, Jhh-l ike, tcith an cvpanded horizontal 

 tail. A'ostrils valcidar. 



Order VII. Sirenia. Nostrils normal, moderate, in front of the nose. 

 Teeth of two or three kinds. 



Order VIII. Cete. Nostrils large, subvertical. on the crown, far from 

 the mouth. Teeth all similar or wanting. 



B 



