468 Zoological Society. 



brighter hue than the former ; but whether this diiFerence is constant 

 I am not aware." 



May 8, 1838.— The Earl of Sheffield in the Chair. 



Mr. Waterhouse brought before the notice of the Meeting an ex- 

 tremely interesting series of skins of Mammalia, which had recently 

 been given to the Society's Museum by George Knapp, Esq., who 

 had received them from the Island of Fernando Po. The collection 

 included the following seven species, which were considered by Mr. 

 Waterhouse as hitherto undescribed ; namely, two new Colobi, form- 

 ing a most important addition to that group of Quadrumana of which 

 our knowledge is so extremely limited, from the small number of skins 

 brought to Europe ; two new species of Cercopithecus ; a new An- 

 telope, a new Otter, and a new species of the genus Genetta. 



These were severally named by Mr. Waterhouse, and the follow- 

 ing descriptions and specific characters communicated. 



CoLOBUs Pennantii. Col. suprd. nigrescens, ad latera fulvescenti- 



rvfus ; subtiis flavescens ; cauda fusco-nigricante ; genis albis. 

 Longitudo capitis corporisque, 27 unc. ; caudce, 29 unc. 

 Hab. Fernando Po. 



" The prevailing colour is bright rusty-red ; the head, back of the 

 neck, and the central portion of the back, are black ; the cheeks and 

 throat are white or dirty white ; chest, fore part of the shoulders, 

 the under parts of body and inner side of the limbs are dirty yellow-; 

 inner side of the thighs whitish ; the hairs of the tail are brownish 

 black. The fur is long and not very glossy ; that on the head and 

 fore parts of the body being the longest. There is no soft under 

 fur ; the hairs are of an uniform colour to the base, or at least in a 

 very slight degree paler at that part. The portion of the back which 

 is described as black partakes slightly of the rusty hue which prevails 

 over the other parts of the body ; it occupies but a narrow portion 

 of the back, and blends indistinctly into the rust colour. The lower 

 parts of the limbs are removed, but/as they are black at the knee, 

 and also assume a deep hue below the elbow, it is probable the re- 

 maining portions are black externally ; but internally, as far as can 

 be seen, the limbs are yellowish or yellow- white. 



" There was scarcely any perceptible difference in the colouring in 

 all the specimens examined by me, from Fernando Po, amounting to 

 about eight in number. They invariably had white or dirty- white 

 cheeks and throat. 



" This species is the nearest yet found to the Bay Monkey of Pen- 

 nant, but differs in having the throat and cheeks white, and in ha- 



