50 MR. C. BODRX KLOSS OX 



Spexlm''.ns ex'iiiuiiecL—8\x, 3 males and 3 females. 



Hemark^.— There is extremely little variation in the series 

 from Koh Chang, which is easily separated on the above 

 characters from the mainland form. The dark dorsal stripes, 

 thoui^h obsolete, are indicated by an increase in the amount of 

 black' annulation, but are not so intense in colour as the area 

 between the lateral pale stripes. 



24. Menetbs berdmorei rufescens, subsp. n. 



Type. Adult female (skin and skull), No. 1740/C.B.K. 

 B.M. No. 15.11.4.93. Collected on Koh Kut Id., S.E. Siam, 

 26th December, 1914. i, • i. 



Diagnosis. — Lighter and more rufous above than the neigh- 

 bouring continental form, dark dorsal stripes absent, dark lateral 

 stripe not deeper in colour than the back; upper pale stripe 

 a little less intense, the lower much less distinct ; sides of body 

 bordering the abdomen considerably darker. Under surface 

 sliglitly richer buff. Tail darker and much less hoary. 



,Skull and Teeth.— As in the mainland animal. 



Measitrements. —'Ea.vs of the type, 17, of the series, 17-22 mm. 

 For other measurements see table, p. 71. 



Specimens examined. — Nineteen, 11 males and 8 females.^ 



Remarks.— As in the series of 18 examples from the adjacent 

 mainland dealt with above, there is a certain amount of varia.tion 

 in the dorsal area of this race, some examples having the dark 

 Literal dorsal stripes present to a slight degree and the media,n 

 one just indicated : when this is the case the area between the 

 pale lateral stripes is proportionately darker also. The other 

 differences, however, are consistently maintained and the series 

 further includes the largest animals obtained in this region. 



25. Epimys jerdoni marinus, subsp. n. 



Type. Adult male (skin and skull), No. 1455/O.B.K. B.M. 

 No. 15.11.4.160. Collected on Koh Chang Id., S.E. Siam, 

 9th December, 1914. 



Characters. — Resembles Epimys jerdoni hukit (Bonhote), but 

 with the white of the under parts hardly ever extending to the 

 foot, and tail rather shorter. Skull with smaller bullae, larger 

 palatal foramina, and broader interpterygoid space. 



Coloitr. Above ochraceous tawny, much darkened or streaked 



by the exposed tips of the numerous stiff spines which have 

 greenish horn-coloured bases. Base of fur grey. Below yellowish 

 white to the base of the hairs, extending over the fore limbs to 

 the hands, but not quite reaching the hind feet, which are white 

 with brownish centres. Tail bicoloured with a dark tip. 



Skull and Teeth.— hike those of E. j. hukit, but with smaller 

 and more flattened bullae; broader interpterygoid space, the 

 outline of which is more angular owing to the straighter anterior 

 margin ; palatal foramina larger, nearer the incisors, and the 



