242 
GEOGRAPHICAL ZOOLOGY. 
[part iv. 
exclusively South American family is really derived from Europe, 
where it has long been extinct. 
Family 69. — LAGOMYIDZE. (1 Genus, 11 Species.) 
General Distribution. 
N r.OTROFICAli 
Nearctic 
Paleearctic I 
Ethiopian 
Oriental 
Australian 
Sub-regions, 
Sub-regions. 
Sub-regions. 
Sub-regions. 
Sub-regions. 
Sub-regions. 
2-4 3 
The Lagomyidse, or pikas, are small alpine and desert animals 
which range from the south of the Ural Mountains to Cashmere 
and the Himalayas, at heights of 11,000 to 14,000 feet, and 
northward to the Polar regions and the north-eastern extremity 
of Siberia. They just enter the eastern extremity of Europe as 
far as the Volga, but with this exception, seem strictly limited 
to the third Palacarctic sub-region. In America they are con- 
fined to the Rocky Mountains from about 42° to 60' north latitude. 
Extinct Lagomyidce . — Extinct species of Lagomys have occurred 
in the southern parts of Europe, from the Post-Pliocene to the 
Miocene formations. Titanomys, an extinct genus, is found in 
the Miocene of France and Germany. 
Family 70. — LEPOPJDiE. (1 Genus, 35-40 Species.) 
General Distribution. 
Neotropical 
Sub-regions. 
Nearctic I 
Sub-regions. | 
P ALASARCTr C 
Rub-regions. 
Ethiopian 
Sub-regions. 
Oriental 
Sub-regions. 
Australian 
SUB-REGTGNS. 
— 2.3 — 
1 .2 .3. 4 
|l .2 .3.4 
j 1 - 3 - 
| 1.2.3- 
— 
The Hares and Rabbits are especially characteristic of the 
Nearctic and Paleearctic, but are also thinly scattered over the 
Ethiopian and Oriental regions. In the Neotropical region they 
are very scarce, only one species being found in South America, 
in the mountains of Brazil and various parts of the Andes, while 
one or two of the North American species extend into Mexico 
