272 NEW MAMMALS AND BIRDS 



Epimys ululans, sp. nov. Type : — Adult male (skin 

 and skull), Federated Malay States Museums, Xo. 233/14, 

 collected at Siolak Dras, Korinchi Valley, 3,100', West Suma- 

 tra, on 17th March 1914, by H, C. .Robinson and C. Boden 

 Kloss. 



Characters : — Externally closely resembling Epimys voci- 

 ferans (Miller)" with bicolor tail ; but skull with interpterygoid 

 space narrower and parallel-sided, the pterygoids less pro- 

 minent and projecting and the palatal foramina narrower, the 

 upper tooth row shorter and not diverging posteriorly to 

 the same extent. 



Measurements'. — Head and body, 237; tail, 253; hindfoot, 

 45 mm. (measured in flesh). Skull: greatest length, 53.5; 

 condylo-basilar length, 46.1; diastema, 14.1 ; upper molar row, 

 9.8; length of palatal foramina, T.T : median nasal length, 

 20.5; breadth of nasals, 6.1 ; zygomatic breadth, 24.7 mm. 



Specimens examined: — The type. 



Epimys similis, sp. nov. Type : — Adult female with 

 worn teeth (skin and skull), Federated Malay States 

 Museums, No. 285/14, collected at Siolak Dras, Korinchi 

 Valley, 3,100', West Sumatra, on 27th .March 1914, by H. C. 

 Eobinson and C. Boden Kloss. 



Characters: — Eesembles E, pellax (Miller) of the Malay 

 Peninsula but has the colour of the upper parts extending over 

 the inner side of the fore-limbs and thighs, cutting off the 

 white of the abdomen from the extremities. Skull narrower 

 and less robust, 



Measurements : — Head and body, 186 ; tail, 183 ; hindfoot, 

 37.5 mm. (measured in flesh). Skull: greatest length, 43.3: 

 condylo-basilar length, 36.5; diastema, 12.3 : upper molar row, 

 6.9 ; length of palatal foramina, 6.0 ; median nasal length, 

 17.2; breadth of nasals, 4.0; zygomatic breadth, 18.0 mm. 



Specimens examined : — Five. 



Epimys ravus, sp. nov. Type: — Adult (aged) male 

 (skin and skull) Federated Malay States Museums, Xo. 

 422/15, collected at Sungei Kumbang, Korinchi, 4,700', West 

 Sumatra, on 20th April 1914, by H. C. Eobinson and C. Boden 

 Kloss. 



Characters: — Like E. catellifer (Miller) 7 with com- 

 paratively slender dorsal spines but tail more markedly bicolor : 

 tail and feet longer ; no buffy abdominal markings. 



5. Mus voeiferans, Miller, Troc. Biol. Soc. Washington, xiii, p. 138, 

 pis. 3, 4, fig. 3 (1900). 



6. Mus pellax, Miller, Proc. Biol. Soc. Washington, xiii, p. 117 (1900). 



7. Mus catellifer, Miller, Proc. U. S. Nat. Mus. xxvi, p. 161 (1903). 



Jour. Straits Branclj 



