NO. 21 FIFTY-ONE NEW MALAYAN MAMMALS — MILLER 9 



Diagnosis. — A member of the rattus-growp similar to Epimys pan- 

 nosus of Pulo Adang, Butang Islands, but skull less robust, in- 

 cisive foramina distinctly narrowed anteriorly, and teeth usually not 

 so large. 



Measurements. — Type: head and body, 205 mm.; tail, 175; hind 

 foot (dry), 38 (36) ; condylobasal length of skull (teeth much 

 worn), 42.3; zygomatic breadth, 20.2; interorbital constriction, 6.7 : 

 mastoid breadth, 16.9 ; depth of braincase, 10.9 ; nasal, 16.6 ; diastema, 

 12.1 ; mandible, 26.5 ; maxillary toothrow (alveoli), 8.0; mandibular 

 toothrow (alveoli), 7.2. 



Specimens examined. — Five (three skulls without skins), all from 

 Pulo Rawi. 



Remarks. — Though in external appearance not appreciably differ- 

 ent from Epimys pannosus, this species is distinguishable from its 

 ally by the cranial characters shown in the series of five skulls. 



EPIMYS TINGIUS, new species 



Type. — Adult male (skin and skull), No. 1 12723, United States 

 National Museum. Collected on Pulo Tinggi, off east coast of Jo- 

 hore, August 5, 1901, by Dr. W. L. Abbott. Original No. 1201. 



Diagnosis. — A member of the raffia-group similar to Epimys tam- 

 bclanicus of the Tambelan Islands and E. pannosus of the Butang 

 Islands, but skull more slender than in the latter and auditory bullae 

 smaller than in the former. 



Measurements. — Type: head and body, 217 mm.; tail, 204; hind 

 foot (dry), 40.5 (38) ; condylobasal length of skull (teeth moder- 

 ately worn), 44.1 ; zygomatic breadth, 21.9; interorbital constriction, 

 7.2; occipital breadth, 18.0; depth of braincase, 12 ± ; nasal, 17.0; 

 diastema, 12.2; mandible, 27.2; maxillary toothrow (alveoli), 7.2; 

 mandibular toothrow (alveoli), 7.1. 



Specimens examined. — One skin and six skulls, all from Pulo 

 Tinggi. 



EPIMYS FULMINEUS, new species 



Type. — Adult female (skin and skull), No. 1 12349, United States 

 National Museum. Collected on St. Barbe Island, South China Sea, 

 May 27, 1901, by Dr. W. L. Abbott. Original No. 950. 



Diagnosis. — A member of the rattus-group, in general like Epimys 

 tiiigius, but skull still more slender, with braincase both narrower 

 and less deep. 



Measurements. — Type: head and body, 205 mm.; tail. 220; hind 

 foot (dry), 37 (35) ; condylobasal length of skull (teeth much worn I, 



