CLASSIFICATION OF MAMMALIA. 183 



The System of Mammalia of Cuvier, according to the 2nd 

 Edition of the ' Regne Animal.' 



A. Unguiculata. 



Sect. a. With three kinds of teeth. 



I. Bimana. 

 1. Homo. 



II. QUADRUMANA. 



1. Simla, incisors 4 in each jaw, erect; nails flattened. 



». Inhabiting the Old World; molaries 5 on either side of each jaw. 



PlTHECUS, &C. 



/3. Inhabiting the New World ; molaries 6 on either side of each jaw. 

 Cebus, &c. 



2. Lemur ini, incisors more than 4 either in the ripper or lower jaw, pro- 

 cumbent. Lemur, &c. 



III. Carnivora. 



1. Cheiroptera, with membranous expansions between the fingers, and 

 laterally between the extremities. 



et. Vespertiliones, with the bones of the anterior extremity dispropor- 

 tionately elongated. Pteropus, &c. 



/3. Galeopitheci, with the fingers and toes of the same length. Galeo- 

 pithecus. 



2. Insectivora, without lateral membranous expansions ; molaries cus- 

 pidated. 



a. With 2 long anterior incisors, the rest short, the laniaries small. 

 Erinaceus, &c. 



/S. With the incisors small, the laniaries large. Centetes, &c. 



3. Carnivora, incisors 6 in each jaw ; molaries, some of them sectorial or 

 trenchant. 



a. Plantigrada. Ursus, &c. 



iS. Digitigrada. Canis, Felis, &c. 



y. Amphibia. Phoca, &c. 



IV. Marsupiata. 



1. Incisors small ; laniaries long ; posterior molaries cuspidated. Di- 

 delphis, &c. 



2. Lower incisors 2, long ; upper ones 6. Upper laniaries long and 

 pointed ; lower ones small. Phalangista, &c. 



3. Lower laniaries wanting; no thumb on the hind feet. Hypsi- 

 prymnus. 



4. No laniaries. Macropus. 



5. Lower incisors 2 ; no laniaries : upper incisors 6 ; 2 small laniaries. 

 Phascolarctos. 



6. 2 long incisors in each jaw ; no laniaries. Phascolomys. 



Sect. b. Without laniaries ; 2 large incisors distant 

 from the molaries. 



V. RODENTIA. 



1 . With clavicles. 



*. Sciuridae, anterior digits 4, posterior 5 ; tail cylindrical and bushy. 



