CLASSIFICATION OF ANIMALS. 



THE BRANCH OF VERTEBRATA, OR VERTEBRATES. 



THE CLASS OF MAMMALIA, OK MAMMALS. 



OKDEKS. 



* According to Professor Gill, the old family Phocidae really comprise^ three families : 

 PnociDJB proper, including Phoca, Fasomys, Pagophitus, Er'iqnathvs, H(dicli(priis, 

 MonachuSy Cystophora, Macrorfiinits, Lobodon, Stenorfiynchus, Lepionyx and Ommo' 

 tophocn : OrABiroJE, including Otaria, CaUorkimts, Eumetopifxs, Zalopkits, and Arcto- 

 eephalus ; and Rosmarib^, including Rosmarus. 



