CATALOGUE 
OF 
MAMMALIA. 
Class 1. MAMMALIA. 
_Vertebrate animals, more or less covered with hair, and furnished 
with milk-giving mammary 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 
diaphragm ; viviparous; the young nourished with milk. 
Synopsis OF ORDERS. 
I. Quadrupeds, or bipeds, with the fingers and toes elongate, flexible, and 
armed with claws or nails, Unguiculata. 
Order I. Primates. Teeth of three sorts. Thumb and great toe 
opposable to the fingers or toes. Teats pectoral. Penis free. 
Order II. Ferm, Teeth of three sorts. Thumb not opposable. Teats - 
ventral. Penis in a sheath. 
Order III. Gurus. Teeth of two sorts; cutting-teeth large; canines 
wanting. Penis in a sheath. Teats ventral. 
II. Quadrupeds, with the toes short, enclosed in the skin and armed with 
hoofs. Ungulata. 
Order IV. Bruta. Teeth all of one kind or entirely wanting. Hoof 
often compressed, elongate. 
Order V. Pecora. Teeth of two or three kinds. Stomach complicated. 
Front of upper jaw toothless, callous. Toes in pairs. Hoofs 
triangular. 
Order VI. Bettua. Teeth of three kinds. Stomach simple. Upper 
cutting-teeth distinct, Skin thick, nearly naked. Hoofs triangular or 
nail-like. 
IIL. Limbs fin-like. Body elongate, fish-like, with an expanded horizontal 
tail. Nostrils valvular. 
Order VII. Srrznta. Nostrils normal, moderate, in front of the nose. 
Teeth of two or three kinds. ; 
Order VIII. Cers. Nostrils large, subvertical, on the crown, far from 
the mouth. Teeth all similar or wanting. 
B 
Ae 
