On a new Mink-like Mustela from Java. 261 
themselves in the degree to which the yellow of the sides of 
the rump is grizzled or clear, that, with this character shown 
to be variable, I very much doubt if nigrtclunzs should be 
considered as distinct from prymnolopha, to which these 
specimens have hitherto been referred. 
Dr. Allen * has also recently tried to show that Myoprocta 
pratt?, Pocock, is synonymous with Dasyprocta ewilis, Wagl., 
from the Amazon, which has usually been synonymized with 
M. acouchy. 
But how he can deduce that “ D. exilis belongs evidently 
to the olivaceous and not to the rufous section of the genus ” 
from Wagler’s words “ noteeo toto castaneo-fuscescente ” [am 
at a loss tounderstand. And the rest of Wagler’s description 
equally applies to MW. acouchy, with the quite unimportant 
exception of the median white stripe on the belly. 
The British Museum contains a Myoprocta from Obidos 
which is no doubt representative of D. ewl’s, and this is in 
all respects similar to typical M. acouchy of Guiana. 
The relation of Allen’s MM. milleri, from Colombia, to 
Pocock’s Amazonian JM. pratti still remains to be settled. 
SS  & XXIX.—A new Mink-like Mustela from Java. 
(3% By H.C. Roprysoy and Ouprieip Tuomas. 
1 
(Published by permission of the Trustees of the British Museum.) 
THE animal here described was obtained during 1916 in Java 
by Robinson, and forms a very striking addition to the fauna 
of that island. It is widely different from any known 
Oriental Mustela, but has a very remarkable resemblance to 
a mink, especially to the European one (Mustela lutreola), on 
which fact we have based its name. 
Mustela lutreolina, sp. n. 
Type.—Adult male (skin and skull). Formerly Federated 
Malay States Museums, no. 190/16; now British Museum, 
no. 17. 8.4. 2. Collected at Tjibodas, West Java, 5500’, on 
February 17th, 1916, by H. C. Robinson. Original number 
7231. 
Characters.—A large-sized species of the subgenus Mustela, 
* Op, cit. xxxyv. p. 569, 
