1900.] MAMMALS FROM SIAM. 193 



backwards beyond the premaxillse, and the pterygoids are large 

 and prominent. 



Dimensions of type (in the flesh) .: — 



Head and body 464 mm. ; tail 577 : bind foot 85 ; ear 50. 



Skull — greatest length 78*3 mm. ; basilar length from henselion 

 64 ; zygomatic breadth 53*5 ; length of nasals 25'5 ; width of 

 nasals anteriorly 16 ; width of nasals posteriorly 7. 



Hab. Siam. 



Type. B. M. 98.10.5.41. 6 ad. Doi Sritepe, Chingmai. 10th 

 April, 1898. 



I have great pleasure in naming this tine species after Mr. Lyle, 

 who has collected so carefully and thoroughly in the midst of his 

 other duties, and has generously presented the results of his labour 

 to the Museum. 



There is no risk of confusing this species with any of the pre- 

 existing ones. It is allied to the group of PP. oral, pliillipensls, 

 and cineraceus, but its larger size and red underparts distinguish 

 it at a glance. 



The skull of the Burmese P. cineraceus, Blyth, nearly equals that 

 of the present species in length, but is not so deep and round, 

 conforming in general type with that of the Indian specimens. Its 

 nearest ally is P. yunnanensis Anderson, from which it is distin- 

 guished by its hoary back and uniform chestnut underparts, besides 

 other minor differences. 



Mr. Lyle got a second specimen, also an adult male and from 

 the same locality, which closely resembles the type. The bases 

 of the hairs of the back are not so rufous, and below there are more 

 white tips. 



8. SCIUROPTERUS PHAYREI Blyth. 



Nan. 



a-b. 6 $ ad. sk. 22nd July, 1897. 

 c. ? ad. sk. 16th Sept. 1897. 



All three specimens are slightly larger than the average, but do 

 not differ in any other respect. 



9. Batufa gigantea (Maccl.). 



Nan. a. 6 ad. sk. 10th April, 1898. 



10. SCIUKUS FINLAYSONI (Horsf.). 



Sokotai. a, b. 6 6 ad. sk. 17th & 20th Jan., 1898. 



Bau Mu, Hiang Hai. c, d. ? $ ad. sk. 8th Feb., 1898. 



Memoh, Lakon, Phine lload. «,/.$? ad.sk. 24th Aug., 1898. 



Phitsamuloke on MenamB. g-Tc. 6 6,9-2 ad.sk. 6th June, 

 1898. 



Pichit. I, m. 2 2 ad. sk. 7th June, 1898. 



Between Pichit and Pakuampo. n-p. 6,2 2 ad. sk. 9th June, 

 1898. 



Ban Bu Nok, Menam K. a. 6 ad. sk. 9th June, 1898. 



