EECORD 
OP 
ZOOLOGICAL 
LITERATURE. 
MAMMALIA 
BY 
Albert Gunther, M.A., M.D., Ph.D. 
A. Separate Publications. 
AtiDDENDORFP, A. VON. Sibirisclie Reise. Band iv. Ueber- 
sicht der Natnr Nord- iind Ost-Sibiriens. Theil ii. Erste 
Lieferung. Die Tliierwelt Sibiriens. St. Petersb. 1867, 4to, 
pp. 785-1094. [Siberian Journey. Vol. iv. Aecount of 
the Nature of North and East Siberia, Divis. ii. Part first. 
The fauna of Siberia.] 
All zoologists are acquainted with tlie seeond volume of Dr. 
von. Middeiidorft’^s * lleise,^ which contains the detailed descrip- 
tions of the species of Mammalia collected during his voyage. 
The present volume is devoted to a more philosophical treatment 
of the author’s observations, to the geographical distribution and 
variation of the species, and their relation to the physical features 
of the country in recent and past times. Of necessity many 
general questions are discussed; and the opinions held by a man 
with so much positive knowledge, and so long an experience, as 
Dr. V. Middendorff demand every attention. We give a short 
abstract of the contents of the volume. 
In the first two chapters the author demonstrates the Identity 
of the Siberian fauna with that of Europe, the number of species 
decreasing from the south towards the north. Only 16 mammals, 
71 birds, and not one reptile have been met with between lat. 
1869. [vol. VI.] n 
