A COLLECTION OF MAMMALS FROM SIAM. 27 



33. Epimys validus. 



,l/(/s riili'i/us, MilU'i-, Pnn', Bidl. Soo. Wasliiiigtuii, p 141, jils. Ill iind 



IV, %. 1 (1900). 

 E]iimi/s fiili(lui<, ]{iil)iiisiin and Kloss, Jdiini. Fed. Malay States Miis , 



V,'j) 12") (1914); Wniuglitdii, Jomn. Buiiibav Nat. Hist. Soc , 



XXIII, p. 715 (1915). 



1 6 adult. Klung Bang Lai, ]\itiyu, I'eiiinsular Siam. Jan. 

 1915. [No. 2078J. 



This is a large, coarsel3--fnri'ed, jungle rat, the upper parts 

 mingled black and buff and the underside buffy ; nearly everywhere 

 the gre}' base of the fur shows through and modifies the above coloura- 

 tion. Tlie tail is black througliout and the liind feet are thinly clad 

 with dark hair. 



The skull is stronglj' and heavilj' built and is distinguished 

 from all other local species of Einmijs by the marked protuberance 

 (mandibular tubercle) on the outer side of the ascending ramus of the 

 mandible, a feature which occurs in the bandicoot rats ("some of which 

 E. validus superficial!}' resembles) in a still more exaggerated degree. 

 ( For measurements see table p. 32 ). 



31. Epimys ferreocanus. 



Mils fcrn'ocdiixf, Millor, Vrtu'. Diol. Sor, Wasiiiiiijtoii, XIII. p 140, 

 pis. Ill & IV, Hi?. 3 (11)00): Kobiiisou niul Kloss, Jdurii. Fed. 

 M.ilay Slates Mns. IV, p. 124 ( 100!)). 



lipimi/s JlrrcdCaii lis, Roliiiisdii and Kluss, op. eit. VI, p. 238 ( 1911! ). 



1 d imni. Maprit, Patiyu, I'eninsular Siam. Jan. 191(3. 

 [No. 2070]. 



Tliis rat was described from Trang and extends as far south as 

 Perak : the present specimen is the most northerly example I have 

 seen and the j'oungest, and the onlj' one with the tail dai'k throughout. 



The fur is largelj^ composed of fine pliable spines and is a 

 lustrous purplish-brown above in adults, nearlj' always frosted by 

 whitish tips. The under parts are pure white and there is generally 

 a little patch of white hair immediate!}' below tlie orifice of the ear. 

 The feet are brown or parti-coloured, and tlie tail in full-grown animals 

 has the sharply dffined terminal half to fourth of a yellowisli-white 

 colour. 



The upper incisors are i)alc orange-yellow, while the lower are 

 ivory-white and unusually long and slender. 



VOL. U, JUNE I'JUi. 



