CHAP. XVII.] 



mam:\ialia. 



203 



Southern Hemisphere ; Zalophus (2 species), North Pacific, from 

 California to Japan, and the shores of Australia and New Zea- 

 land ; Eumeto'pias (1 species), Behring's Straits and California. 



Fossil Otariidce. — Eemains supposed to belong to this family 

 have been found in the Miocene of France. 



Family 34.— TEICHECHIDiE. (1 Genus, 1 Species.) 

 Gekeral Distkibution. 



Xedtropical 

 Slb-kegion's. 



Nkarctic 

 Sub-regions 



Pal^arctic 

 Sub-kkgio;\'s. 



Ethiopian 

 sub-region.s. 



Oriental 

 Sub-regions 



Australian 



Sub-BEiilO.N.S. 



4 



The Morse, or Walrus (Trichecus rosmams), which alone 

 constitutes this family, is a characteristic animal of the North 

 Polar regions, hardly passing south of the Arctic circle except on 

 the east and west coasts of North America, where it sometimes 

 reaches Lat. 60°. It is most abundant on the shores of Spitz- 

 bergen, but is not found on the northern shores of Asia between 

 Long. 80° and 160° E., or on the north shores of America from 

 100° to 150° west. 



Its remains have been found fossil in Europe as far south as 

 France, and in America as far as Virginia ; but the small frag- 

 ments discovered may render the identification uncertain. 



Family 35.— PHOCID^. (13 Genera, 21 Species.) 



The earless or true Seals are pretty equally divided between 

 the Northern and Southern Hemispheres, frequenting almost ex- 

 clusively the temperate and cold regions, except two species 

 said to occur among the West Indian islands. The genus 

 Phoca and its close allies, as well as Halichcerus and Pclaf/ius, are 



