98 



that the latter are united to the contiguous middle or ring fingers, 

 respectively, through the greater part of the first phalanx, as in the 

 Siamang, Pitkecns syndactylus, F. Cuv. The face is short, the head 

 round, and the whole form and habit of the animal similar to those 

 of the Semnopitheci. The teeth are of the usual form and number, 

 and there are large and very distinct cheek pouches. I was the more 

 particular in making this last observation, because the organs in 

 question had not been previously recorded as existing in the Colobi, 

 and because M. Geoffi-oy St. Hilaire in his valuable lectures, of which 

 it is a matter of great regret that so small a portion has been given 

 to the public, even doubts their existence. Of this, however, there 

 can be no longer any reasonable doubt ; they are extremely appa- 

 rent and rather capacious in the specimen now under description. 

 The teeth of this specimen, a very old female, without even except- 

 ing the canines, which do not appear to have been remarkably large 

 at any time, are worn almost down to the gums.- Mr. Kendall pos- 

 sesses a second and younger specimen which, however, differs in no 

 respect from that just described. 



The arrival of these skins, probably the only perfect specimens of 

 the genus Colobus in Europe, with the exception of that in the Ley- 

 den Museum, and of the specimens recently brought from Abyssinia 

 by Dr. Ri'tppell, naturally led me to refer to the imperfect skins no- 

 ticed by Mr. Bennett in the ' Proceedings of the Committee of Science 

 and Correspondence' of this Society for 1832, page 122, and to exa- 

 mine generally the characters of the different species already described. 

 The result of my investigation into this subject leads me to conclude 

 that we at present possess sufficient indications of six distinct spe- 

 cies of Colobi, which may be characterized as follows : 



1. Col. pohjcomos, Schreb., "with the head and shoulders co- 

 vered with long, coarse, flowing hair, of a dirty yellowish colour, 

 mixed with black ; body, arms and legs of a fine glossy blackness, 

 covered with short hair ; tail of a snowy whiteness, with very long 

 hair at the end forming a tuft." 



2. Col. Ur sinus, with very long glossy black hair over the whole 

 body and extremities, and a long snowy white tail slightly tufted at 

 the end : described from two imperfect skins, without head or hands, 

 the same asthosenoticedby Mr. Bennett in the 'Proceedings' for 1832. 

 Mr. Bennett considered these skins as referrible to the Col. poly- 

 comos; and the general colour of the body and tail, as well as a slight 

 appearance of grizzled or gray hair about the neck, where the head 

 has been cut off, in both the specimens, would at first sight appear 

 to justify his views ; but the words of Pennant, (the only original 

 describer of the species,) as quoted above, imply that the " long 

 dirty yellowish hair," which he compares to a full-bottomed perri- 

 wig, grows from the shoulders and neck as well as the head, and 

 expressly declare that the hair on the rest of the body, as well as on 

 the legs, is short. Now in the specimens at present under consider- 

 ation the very reverse of this is observable. The black hair of the 



