230 Messrs. H. C. Ilol)iiison and V. B. Kloss en 



Epimys surifer manicalis, suits p. n. 



Type.— X.(\w\i male (skin and skull), No. 351/13, Fede- 

 rated Malay States Museum, collected on Koh Penuan, 

 *N.E. Malay" Peninsula, 27tli May, 1913, by H. C. Robinson 

 and E. Seimund. Original no. 546.2. 



Characters. — Distinguislied from all the other local rnces 

 by having the white area of the iinder surface extendino- 

 over the upper surface of the forearms. Tail shorter than 

 head and body. 



Colovr. — Upper surface ochraceous, darkened on the 

 back and rump by the ])istre tips to the spines. Below pale 

 creamy white, this colour extending over the upper anterior 

 half of the forearms. No tawny neck-collar; hands and 

 feet white ; tail bicolor. 



Skull and teeth. — As in E. snrifer surifer, the muzzle not 

 heavier or the tootli-row reduced as in some of the island 

 races. 



Measn7'ements. — Collectors' external measurements (taken 

 in the flesh) : — 



Head and body 176; tail 173 ; hind foot 38 ; ear 23-5. 

 Cranial measurements : greatest length 43'4 (46*0*) mm.; 

 basal length 36-9 (lO-O): length of nasals 17-6 (18-6); 

 grcat(^st breadth of nasals 4*5 (5-0) ; shortest distance 

 l)otwecn tips of nas;ds and lachrvmal not(;h 18*0 ( — ) ; 

 palatal length 18-6 (19-0) ; diastcnia 11-9 (13-4) ; length of 

 })alatal foramina 63 (7"4) ; breadth of combined palatal 

 foramina 3 5 (3'0) ; zygomatic breadth 19-1 (i9-8) ; cranial 

 breadth 15 1 (16-()) ; upper molar row 6-7 (7*0). 



Spechnens ejamined. — Twenty, all from the type-locality. 

 Remarks. — A medium-sized race of JH. surifer with narrow 

 nasals and with the white on the ui)p('r surface of the fore- 

 arms more extensive than in any other form. 



Kpiniys surifer spurcus, subsp. n. 



7>//>e.— Adult inale (skin and skull), No. 288/13, Fede- 

 rated Maiiiy States M)iseum, collected on Koh Samui, 

 N.K. Malay Peninsuhi, 1 1th May, 1913, by II. C. Robinson 

 and Vj. Seimund. Original no. 5352. 



('haraclers. — Lik(! 7'.'. s. fhtvidiiliis from Lnngkawi, but 

 witlj the tail relatively and absolutely longer. 



Odour. — Resembles that of the preceding race, but the 

 Mliite on the forearm reduced to a mere band. 



* Mfasurenifiiits in parcntlifsrs arc tlutso of ;iii jidnlt uinlp Mvs 

 .turiffif i^urifer (typf) from 'rrnii<;, SimiKsf .Miihiy Stiit*','' ; riiitid Statos 

 Mutiiiiial iM u.'^iiini. No. 8(i,740. 



