222 MR. P. L. SCLATER ON ANIMALS IN THE MENAGERIE. [Mar. 7, 



so-called M. lasiotus was really brought from Szechuen, in inner 

 China*, it would hardly be expected that it should be quite iden- 

 tical with M. rhesus of India. M. lasiotus may therefore remain 

 in our catalogues as the designation of one of the Chinese forms 

 of M. rhesus, until further opportunities occur of ascertaining whether 

 the above-mentioned differences are constant and of sufficient im- 

 portance to warrant specific rank. 



It must, at the same time, be recollected that there are already 

 two species of Rhesus-like Monkeys from China established — namely, 

 M. cyclopis, Swinhoef, from Formosa, and Inuus sancti-johannis, 

 Swiuhoe %, from some small islands near Hong-Kong. Besides these, 

 Mr. Swinhoe has also obtained what he considers to be a true M. 

 rhesus from Hainan §. My own opinion is, that none of these sup- 

 posed species, any more than M. lasiotus, are yet proved to be really 

 well established as specifically distinct from M. rhesus. 



2. Macacus assamensis. 



By reference to the original specimen of M. problematicus, Gray 

 (Cat. Monkeys, p. 128), now in the British Museum, I have ascer- 

 tained that this species of Dr. Gray was founded on the Monkey 

 deposited in our Gardens, Nov. 9th, 18C8, by Major C. Richards, 

 having been brought from Dalamcote Fort, Bhootan. In my pre- 

 vious note on this animal (P. Z. S. 1868, p. 566) I referred it to M. 

 assamensis of M'Clelland, and I see no reason to doubt that this 

 identification is correct. But it is of course desirable that reference 

 should be made to the original of M. assamensis, which is still, as I 

 have been informed, on application to the proper authorities for that 

 purpose, boxed up in the cellars of the new Indian Office. 



Dr. Gray (Cat. of Monkeys, p. 31) refers M. assamensis to a Sia- 

 mese form of M. cynomolgus, " like M. cynomohjus, but pale grey, 

 without any red shade," and with the " tail longer than the body." 

 But this is certainly wrong, as M'Clelland says of his 31. assamensis 

 (P. Z. S. 1839, p. 148) " cauda partem tertiam longitudinis totius 

 superante." There can, I think, be no question that M'Clelland's 

 Macacus assamensis belongs to the Rhesus group of Macaques, as is 

 also supposed by Jerdon (Mamm. India, p. 11), and that it is, in all 

 probability, the same as the so-called 31. problematicus. 



Dr. Gray quotes "Assam Monkey, Bar tlett, Land and Water, 1869," 

 as a synonym of his 31. problematicus. The point is not of great 

 importance ; but I may state that I can find no such reference in 

 'Land and Water,' and that Mr. Bartlett altogether denies all 

 knowledge of ever having given it such a name. 



3. Macacus maurus. 



The first example we received of this Monkey was purchased in 

 August 1860, and was referred by me, in a notice of some rare Qua- 

 drumana then living in the Gardens |], to Macacus maurus of F. Cuvier 



* See P. Z. S. 1868, p. 61. f P- Z. S. 1862, p. 350, tab. 42. 



t P. Z. S. 1866, p. 556. § P. Z. S. 1870, p. 226. 



| Proc. Zool. Soc. 1860, p. 420. 



