Zoological Societij. 305 



PROCEEDINGS OF LEARNED SOCIETIES. 



ZOOLOGICAL SOCIETY. 



May 9, 1848.— W. Yarrell, Esq., V.P., in the Chair. 

 The following communications were made to the Meeting : — 



1. Notice of a new species of Monkey from Angola, living 



IN THE Gardens of the Society. By J. E. Gray, Esq., 

 F.R.S. etc. 



The Society has recently procured a Monkey from Angola, which 

 bears some resemblance to the Diadema Monkey which M. F. Cu- 

 vier erroneously described and figured as the female of Cercopithecus 

 Diana, but it differs from that species in the lips being black, like 

 the face, and only covered with very short whitish hairs ; and also in 

 being much darker coloured ; and this blackness has increased since 

 it has been in the possession of the Society and obtained a better 

 fur. At first sight I thought that it might be a melanism of some 

 other species ; but on comparing my notes with the specimens in 

 the British Museum collection, I am convinced that it is different 

 from any I have before had the opportunity of examining. 



It belongs to the division of the genus Cercopithecus with romided 

 whiskers formed of annulated hairs, which have no beard, a variegated 

 fur, and black nose and lips, and is easily distinguished from the 

 species of that division by its dark colour and broad frontal band. I 

 propose to call it 



The Pluto. Cercopithecus Pluto. 



Sp. ch. Black ; the hair of the broad frontal band, ringed with 

 white ; the large rounded whiskers, the back, the upper part of the 

 front of the sides, and the base of the tail, ringed with varying 

 greenish white ; the distal half of the tail black ; the face and lips 

 black, with short, scattered white hairs. 



Inhab. Angola. 



This species is easily known at first sight by the deep black colour 

 of the back of the head, and limbs, and the broad white frontal band : 

 the large mantle- like patch of minute, white, grisled hairs on the 

 back, and the large size of the black and white ringed whiskers, 

 giving the whole animal a very striking appearance. 



The tail at this time i.s not in very good condition, and the end 

 appears to have been destroyed. 



2. Observations on some Brazilian Bats, with the Description 



OF a'new Genus. By J. E. Gray, Esq., F.R.S. etc 

 Having lately received from Hamburg a collection of Bats from 

 Brazil, containing several species which I have not before seen, I 

 beg to lay some observations on them before the Society. 



I may premise that they were all named, on what authority I know 

 not, and referred to described species, but several of them do not 

 agree with the specimens which I have received with the same names 

 before, nor with the original descriptions. 



Ann. fij- Mag. N. Hist. Ser. 2. Vol. iii. 20 



