66 MR. O. THOMAS ON THE MAMMALS OF [Jail. 19, 



Other hand those of North Tenasserim are nearly entirely Burmese, 

 although but few of them, again, are the same as the species found 

 still further north in Manipur. 



The careful and conscientious manner in which Mr. Davison's 

 collecting and labelling is done is nowhere more conspicuous than in 

 the beautiful series obtained by him in Tenasserim, so that the 

 number and excellence of the skins, and above all, the careful 

 preservation of the dates of capture, have been to me, and I hope 

 will be to others, of the greatest possible service in making out the 

 problems of distribution, and of local, sexual, and seasonal 

 variation. 



The collection contains 86 specimens, referable to 25 species. 



1. Hylobates lar, L. 



a, b. Myawadi', c. Kankoryit, 13/1/77. d-g. Bankasun, 

 4-6/77. 



2. Semnoptthecus femoralis, Horsf. 



a. Bankasun, 15/4/77. 

 This rare species forms an addition to the fauna of Tenasserim, 

 the few localities as yet recorded for it being all either in the south 

 of the Malay peninsula or in Sumatra. ]\Ir. Davison's specimens 

 precisely agree with Horsfield's type preserved in the Natural His- 

 tory Museum. 



3. Semnopithecus obscurus, Reid. 



a, b. 5000', Mt. Mooleyit, 30/1/77. c. Foot of Mt. Nvva-la- 

 boo, Tavoy, 10/4/7S. d. Bankasun, 2.5/5/77. 

 Specimen rf is a very remarkably coloured individual differing from 

 all others that I have seen in having its crest, nape, arms and legs, 

 and tail yellow, contrasting markedly with the dark hues of the face, 

 body, and feet. It is, however, led up to by a specimen in the 

 Museum from Malacca, collected by Dr. Cantor ^ which has its 

 crest yellow and its limbs and tail lighter than usual. I am therefore 

 indisposed at present to look upon the Bankasun specimen as more 

 than an individual variety. It must, however, be mentioned that its 

 auditory bullae are larger and more projecting, and its teeth smaller than 

 is usually the case ; but with only a single specimen, these characters 

 are not sufficiently tangible to found a new species upon. 



4. Macacus cynomolgus, L. 

 a. Wimpong, Thatone. 



5. Prionodon maculosus, Blanf. 



a. Bankasun (co-type of species. Figured J. A. S. B. xlvii. 

 pi. vi. 1878). 

 This is the original skin described and figured by IMr. Blanford, 



^ Specimens to wliicli no collector's name is attached were obtained by Mr. 

 Davison. 

 = No. 79. 11. 21.596. 



