ON CUNICULUS TORQUATUS, PALLAS. 
BY 
Dr. A, JSENTINE. 
WITH ONE PLATE, 
To this species belongs the only Mammal which was brought 
home by the Dutch Expeditions to the Arctic Seas in 1878 and 
1879. Mr. Th. W. van Lidth de Jeude has captured a very fine 
fullgrown specimen in Novaja Zemlja, in the Tsjizakinadal, on 
August 21, 1879. 
Pallas first recognized this species and described and figured it ')- 
sub nomine Mus torquatus. Elliot Coues ?) gives an elaborate ac- 
count of its synonymy and fully exposes the great differences be- 
tween this genus and other Arvicoline-genera. By his excellent 
and accurate studies the subject has indeed been exhausted. 
It is easily distinguished from its nearest congeners, the species 
of the Myodes-group: by having a border around the ear-opening 
instead of external ears: the claws and fingers of the fore-feet are 
much more developed: the dentition is quite different: finally it 
1) Novae Species Quadrupedum e Glirium Ordine, 1778, pp. 77 and 206, Tab. XI 2. 
2) Monographs of North-American Rodentia, by E. Coues and J. A. Allen, 1877, 
p: 246 et sqgq. 
JENTINK, Cuniculus. 
