MAMMAJLS PKOM SIAM. 53 



arch mucli narrower tlian in the two preceding races, this 

 diminution markedly increasing tlie size of the infraorbital 

 foramina, as seen from above. 



Measurements. — Ear of type, 24 mm. For other measurements 

 see table, p. 73. 



Speciriiens examined. — Twenty-nine from Koh Kut. 



29. Epimys suriper pelagius, subsp. n. 



Type. Adult male (skin and skull), No. 1659/C.B.K. B.M. 

 ISTo. 15.11.4.109. Collected on Koh Kang Id., S.E. Siam, 22nd 

 December, 1914. 



Diagnosis. — Colour bright clay, diiller than the foi'egoing ra,ces, 

 and further diftering from the mainland animal in having the 

 tail shorter than the head and body, from E. s. changensis in 

 showing no tendency to extension of the white area, and from 

 E. s. kuiensis in the broader anterior zygomatic I'oot. 



Measurements. — Ear of type, 25 nun. For other measurements 

 see table, p. 73. 



Specimens examined. — Twenty-one, all from the type-locality. 



30. Epimys surifer connectens, subsp. n. 



Ty2)e. Adult female (skin and skull), No. 1613/C.B.K. 

 B.M. No. 15.11.4.135. Collected on Koh Mak Id., S.E. Siam, 

 19th December, 1914. 



Diagnosis. — Clay-coloured above, closely resembling E. s. 2^ela- 

 gius, though with the white on the hind limb in some instances 

 a little i-educed towards the ankle. Skull with sliglitly broader 

 nasals and rostrum, and profile less curved. This latter character 

 is difficult to define, but if skulls are compared when resting on 

 their upper sides, connectens skulls will be seen to have the 

 anterior palate and incisors on a lower plane than those of 

 jjelagius ov finis ; or if placed end to end the tips of the nasals 

 of the latter two always enter the nasal cavity of the other. 

 Zygomatic breadth is little greater, and palatal foramina aie 

 slightly larger. 



Measurements. — Ear of type, 24 mm. For other measurements 

 see table, p. 74. 



Specimens examined. — Twenty, all from the type-locality. 



Remarks. — This race is somewhat intermediate between the 

 preceding and following forms, in that the continuation of 

 the white area to the foot is rather indistinct in several 

 examples, while in two specimens (an adult and a subadult 

 female) the under side of the fore limbs, a band across the chest, 

 and the lower part of the hind limbs are pale ochraceous tawny. 



31. Epimys surifer eclipsis, subsp. n. 



Type. Adult male (skin and skull). No. 1540/C.B.K. B.M. 

 No. 15.11.4.125. Collected on Koh Kra Id., S.E. Siam, IGth 

 December, 1914. 



Characters. — Clay-coloured ; white of lower side much reduced 



