46 ON THE GEOGRAPHY OF ANIMALS. 
find these industrious and provident little creatures do 
not inhabit tropical countries, where all these instincts 
would be superfluous. The birds, so far as is yet known, 
appear to be of the same genera as those of Europe ; 
and many species are common to both regions. The 
beautiful rose-coloured starling 
(Pastor roseus Tem.), so rare 
in Europe (fig. 11.), is one 
of the most common birds of 
temperate Asia. Many of the 
aquatic species are also similar 
to those of America ; but Pal- 
las enumerates a long list of 
species unknown to either of 
these continents. We may sup- 
pose, therefore, that the other 
animals, were they better un- 
derstood, would agree in these characteristics. The en- 
tomology of these northern latitudes is scarcely known. 
(63.) The animals of the second Asiatic region are 
very imperfectly known ; it is here, however, that we 
begin to see those larger and more bulky quadrupeds 
which are excluded from the frozen regions of Siberia. 
The famous dzeggtai, or Morgolian horse (Equus He- 
mionus Pallas), the wild Asiatic sheep (Ovis Ammon.), 
and probably the Arnee buffalo, may be instanced as 
characteristic of central Asia. To these we may add 
the Tartaric or Yak ox (Bos Poéphagus H. Smith), 
whose southern range extends to the mountains of 
Bhotan, where alone it has been hitherto seen. If 
so many quadrupeds, of the first magnitude in their re- 
spective families, inhabit these central regions, how 
many others of a smaller size must still remain unknown 
to science. The elegant little jumping jerboas ( Dipus), 
also, belong more properly to the central parts of Asia 
and the warmer latitudes of Siberia: this genus ex- 
tends to Egypt, but has never been found in the New 
World, where it is sepresented only by that of Meriones 
(iL). 
