476 JO URNAL, B 0MB A Y NA TUBAL HIST. SO CIETY, Vol. XXI V. 



Hodgson's type of pelops is in the National Collection and there can be- 

 no doubt that these series represent that species. It is equally certain 

 that both problematicus and rheso-similis are synonyms of pelops. 



In dealing with the N. Shan States Collection, Miss Ryley recorded the 

 local Macaque as rhesux. Later when reporting on the Chindwin Collection 

 I had the advantage of specimens of true rhesus, received in the meanwhile 

 from Bengal and Kumaon, with which to compare them and decided that 

 the N. Shan States, Mt. Popa and Chindwin specimens were certainly 

 not rhesus. 



Of Horsfield's (Macclelland's) assamensis the type is not available and the 

 description is most meagre, and until we can obtain topotypes from Assam 

 no certainty is possible. I have therefore recorded this series as pielops. 

 If later assamensis proves to be identical with p)^^ops the Burmese form 

 will require a new name. 



This is a much larger animal than rhesus. An old male measuring 

 head and body 610 mm., tail 323, hindfoot 180, weight 26 lbs., while a male 

 rhesus gives 510, 235, 161 and IQ^ lbs. The skulls of the same two speci- 

 mens give greatest length of 150 and 120 mm. respectively. McClelland 

 describes it as "Bluish grey with dark brownish own the shoulders, beneath 

 light grey, " but this series shows that there is a considerable range of 

 colouring. The grey hind limbs and belly are fairly constant but in some 

 cases the tawny colouring of the shoulders is suffused with yellow, while in 

 more there is a black shading of various degrees which may almost amount 

 to a complete substitution for the tawny colour. The greater size and 

 stoutness of the canines as compared with those of rhesus is very strongly 

 marked. 



"Vernacular names : Sahu (Lepcha) ; Pio (Bhotia) ; Bandar (Pahari). 



Found throughout Sikkim and Darjeeling at low elevations, the favourite 

 zone in the cold weather being from 2,000 to 4,000 feet. This monkey con- 

 gregates in large companies, as a rule frequenting heavy forest. The call 

 is a loud " pio ", rather a musical note, repeated frequently. The warning 

 cry is "pio", uttered once by the sentry, who is generally on the look out 

 high up in a tree ; the whole band then descends to the ground and moves 

 away in absolute silence concealed by the dense undergrowth. 



The flesh is eaten by the Lepchas who regard it as having medicinal pro- 

 perties. Owing to persecution the monkeys are in certain parts of Sikkim 

 exceedingly shy and wary. They are much more fearless on the Nepal 

 border."— C.A.C. 



Pkesbytis schistaceus, Hodgs. 



The Himalayan Langur. 

 (Synonymy in No. 15.) 



c? 1, 5 2, Chuntang ; 5 1, Lachen. 

 This species is the largest of the group. Dr. Elliot in his " Keview of the 

 Primates " described a species which he called Pygathrix lania {III, p. 93),. 

 It is based on a single rather mutilated specimen which is in the British 

 Museum Collection. The essential character distinguishing it from schista- 

 ceus is " Hair long, thick, woolly, inclined to gather in masses especially on 

 the back and shoulders." The type locality is the Chumbi Valley. The 

 present specimens are from the western slopes of the mountains bounding 

 the Chumbi Valley on the west and might thus be expected to be more 

 closely related to lania than to true schistaceus from Nepal and Kumaon, 

 much further westwards. These Sikkim specimens are undoubtedly 

 much better clothed than Kumaon specimens, but in no way to such 

 an extent as to justify their reference to lania. Dr. Elliot is probably 



