125 



Agreeing well with toyiotypes from Trang. 

 (For measure men ts see p. 126.) 



3U. EPIMYS SURIFER (Miller). 

 b S , 1 ^ . Kao Nawng, Bandon, N.E. Malay Peninsula, 1,400-3,500, feet. 

 June, 1913. 



Common all over the mountain, the specimens from high levels 

 not differing from those trapped at the foot of the hill. 



(For measurements see p. 126.) 



31. EPIMYS OBBUS, Rob. and Kloss. 

 Ann. Mag. Nat. Hist. (8) xiii, p. 228 (1914). 

 •t ^ , 1 ? . Kao Nawng, Bandon, N.E. Malay Peninsula. 3,.500feet. June, 1913. 



There is little to add to our original description of this rat Avhich 

 is very distinct from any Malayan species hitherto desci'ibed, though 

 a closely allied form is met with in the mountains of West Sumatra. 

 As far as can be ascertained from the single female skin available 

 the mammary formula seems to be one pectoral and two inguinal 

 pairs, therein differing from that given for Ephnys fulvescens (Gray) 

 by Blanford. 



Though we have named the present form binomially there is not 

 the least doubt that it is closely allied to the Indian form 

 E. fulvescens from the Himalayas and E. cinnamomeus, Blyth from 

 Northern Tenasserim. Of the latter there is a typical specimen in 

 spirit in the Indian j\Iuseum, which differs in its less spiny pelage 

 and apparently richer colouration. No reliable conclusions can 

 however be drawn from specimens over 50 yeai-s old and until 

 adequate modern material is available it appears safer to regard the 

 present foi'm as a distinct species. 



The characters of the infra-orbital plate given by Blanford are of 

 course merely those separating species of the " rattus " section from 

 the bicolor rats with small bullae typified in the Malayan region 

 by E. stirifer and its allies. 



(For measurements see p. 126.) 



a-i. EPI51YS RATTUS JALORENSIS (Boxu.). 

 2 (7 , inim. Ban Kok Klap, Bandon, X. E. Malay Peninsula. June, 1913. 



3;i. EPIMYS VALIDVS (:Millbe). 

 1 <? . Kao Nawng, Bandon, N. E. Malay Peninsula, 1,400'feet. June, 1913. 



Miller {Smithsonian Misc. Coll vol. 61, no. 21, p. 19 (1913) has, 

 under the name, Epimys victor, recently separated southern penin- 

 sular repi-esentatives of this species from the typical E. validus of 

 Trang on the grounds that the teeth are smaller, the outer anterior 

 tubercle in hi- and ni^ less developed and the greatest skull length 

 about 60 mm. as compared with 55 mm. in northern animals. 



