CHAP. XVII.] 
MAMMALIA. 
203 
Southern Hemisphere ; Zalopkus (2 species), North Pacific, from 
California to Japan, and the shores of Australia and New Zea- 
land ; Eumetopias (1 species), Behring’s Straits and California. 
Fossil Otariidce . — Remains supposed to belong to this family- 
have been found in the Miocene of Prance. 
Family 34. — TPJCHECHIILE. (1 Genus, 1 Species.) 
General Distribution. 
Neotropical 
Sub-regions. 
Ne ARCTIC 
SCB-REOIONS. 
Palaiarctic 
Sub- regions. 
Ethiopian 
Sub-regions. 
Oriental 
• Sub-regions. 
Australian 
Sub-regions. 
— 
4 
| 1 “ 3 ~ 
— 
— 
The Morse, or Walrus ( Trichecus rosmarus), 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 JLat. 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.) 
General Distribution. 
Neotropical 
Sub-regions. 
N EARCTIC 
Sub-regions. 
PALiEARCTIC 
Sub-regions. 
Ethiopian 
Sub-regions. 
Oriental 
Sub-regions. 
Australian 
Sub-regions. 
1 4? 
I 4 
1 .2.3.4 
— 
— 
— 2 .3 — 
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 Jlalickcerus and Pelagius , are 
