18/1.] MR. P. L. SCLATER ON ANIMALS IN THE MENAGERIE. 223 



(H. N. d. Mamin. pi. 45). When we received a second example 

 in 1866 (Feb. 21), Dr. Gray described and figured it as a new species 

 under the name M. inornatus (P. Z. S. 1866, p. 202, pi. xix.). 

 But I see no reason to change my former determination. The 

 figure in the 'Histoire Naturelle des Mammiferes,' although stated 

 to have been taken from a drawing*, agrees in nearly every respect 

 with our specimen. 



In August last Mr. W. Jamrach deposited in the Society's Gardens 

 three Monkeys of this species, along with two of M. ocreatus and 

 six of the so-called Cynopithecus niyer. On the 1st of January of 

 the present year we purchased two of these animals, which are still 

 living in the Gardens. 



It is unfortunate that we do not yet with certainty know the exact 

 locality of this Macaque. But I think it is probably Borneo, as al- 

 ready conjectured by Dr. Gray. 



This Macaque is of exactly the same form as M. ocreatus (figured 

 P. Z. S. 1860, Mamm. pi. lxxxii.) ; and the young animals of the 

 two species are so much alike, that one of Mr. Jamrach's specimens, 

 supposed when it was deposited to be M. maurus, has since turned 

 out to be M. ocreatus. 



4. Ateles grisescens, Gray, P. Z. S. 1865, p. 732; Cat. of 

 Monkeys, p. 42. 



Dr. Gray founded this species of Ateles upon a specimen that was 

 living in our Gardens in 1864. It was brought home by Mr. E. 

 Greey, F.Z.S. (who was at that time an officer in the West-Indian 

 Mail Company's Steam-ship 'Shannon'), on the 29th Oct., 1864. 

 Referring to Mr. Greey's letters, I regret to find that he did not 

 know the exact locality of it, but only states that it was obtained by 

 him at St. Thomas's, and had already been three years in captivity, 

 so that it was quite adult. 



In 1869 (Oct. 12) we purchased of a London dealer a somewhat 

 similar specimen, which died twenty-six days afterwards. It was a 

 young half-grown male. I have compared its skin (which I now 

 exhibit) with the typical specimen of A. grisescens, now in the British 

 Museum, and believe them to be probably identical. The youn°- 

 animal is, as might be expected, rather lighter in colour, particularly 

 below, but above exhibits the same mixture of black and greyish 

 hairs as in the original. The tail is nearly black above, with a light 

 line of greyish hairs below. The length of the body is 14 inches, of 

 the tail 1 6 inches. There is no rudiment of a thumb apparent. 



It is possible this may be a good species, and still turn up in some 

 part of the Central American or the Columbian coast, whence Mr. 

 Greey's specimen probably came ; but I do not yet consider it suf- 

 ficiently well established. 



5. Ateles cucullatus. (Plate XIV.) 



Ateles cucullatus, Gray, P. Z. S. 1865, p. 733 ; Cat. of Monkeys, 

 p. 42 ; Murie, P. Z. S. 1865, p. 739. 



* Is. Geoffroy, Cat. de Mamm. p. HI. 



