ORYZOMYS. 247 



Color. Above yellowish brown lined with black, darkest on dorsal 

 region ; chin and throat pale gray ; rest of under parts gray tinged 

 with buff; tail distinctly bicolor, above black, beneath yellowish white, 

 naked; hands and feet buffy white; ears dark brown. 



Measurements. Total length, 259; tail vertebrae, 130; hind foot, 

 31. Skull: occipito-nasal length, 31.5; Hensel, 29.7; interorbital con- 

 striction, 4.5; greatest zygomatic width, 16; least zygomatic width 

 anteriorly, 13; width of braincase above zygomata, 12; length of 

 nasals, 12; palatal length, 13.5; length of incisive foramina, 11.4; 

 length of upper tooth row, 5 ; length of mandible, angle to base of in- 

 cisors, 15; height at condyle, 7; length of lower tooth row, 5. 



b. Tufinus (Oryzomys), Merr., Proc. Wash. Acad. Scien., in, 1901, 



p. 285. 

 FULVOUS RICE RAT. 



Type locality. Catemaco, State of Vera Cruz, Mexico. 



Genl. Char. Incisors and molars larger than those of 0. jalapce. 



Color. Similar to O. jalapce, but back and rump deep fulvous, 

 lined with black; tail dusky all around, paler beneath; under parts 

 buffy; hands and feet flesh color, sparsely covered with white hairs; 

 ears blackish brown. 



Measurements. Total length, 270; tail, 139; hind foot, 32. 



237. teapensis (Oryzomys) , Merr., Proc. Wash. Acad. Scien., in, 1901, 



p. 286. 

 TEAPA RICE RAT. 



Type locality. Teapa, State of Tabasco, Mexico. 



Geogr. Distr. State of Tabasco; possibly also State of Chiapas, 

 Mexico. 



Genl. Char. Ears small ; hind feet rather short ; colors dark. 



Color. Above grizzled bistre; sides yellowish, lined with black; 

 chin, throat and arms whitish; rest of under parts buffy fulvous; tail 

 dusky, base beneath yellowish. 



Measurements. Total length, 259 ; tail vertebras, 179 ; hind foot, 32.5. 



238. antillarum (Oryzomys), Thomas, Ann. Mag. Nat. Hist., 7th 



Ser., i, 1898, p. 177. 

 JAMAICA RICE RAT. 



Type locality. Jamaica. 



Geogr. Distr. Type locality only. 



Genl. Char. Size of O. couesi; tail as long as head and body, 

 nearly naked. Skull : supraorbital ridges well defined ; interparietal 

 narrow; nasal passing posteriorly the premaxillae; palatal foramina 

 compressed ; palate extending beyond third upper molar. 



