“ 
340 On. South- American: Muridee. 
Palatal foramina narrowed behind, continued well between 
the molars. Bullee very large. 
First molar apparently without anterior notch, but quite 
young specimens are not available. 
Genotype. B. amenus (Akodon amenus, Thos.). 
Other species: LB. a/biventer, Thos., B. berlepschi, Thos. 
By its large bulle and long claws Bolomys resembles 
Chreomys, but the general facies and the structure of the 
rest of the skull seem to indicate a nearer relationship to 
Akodon. : 
The three species are all inhabitants of the Andean 
highlands. 
VI. Curaomys, gen. nov. 
Fur long, soft, and fine. Coloration very striking, with 
contrasted patches of white or ochraceous. lars large. 
Claws long, the anterior exceeding the posterior ; fourth fore 
claw in C. pulcherrimus 4-0 mm., fourth hind 3°6. 
Skull with large rounded brain-case. Interorbital region 
with its edges smoothly rounded. Zygomatic plate scarcely 
projected forward. Palatal foramina of medium length. 
Bulle very large. 
Incisors unusually slender, their front surface a paler 
yellow than in the other genera. First molars without 
anterior notch. 
Genotype. C. pulcherrimus (Akodon pulcherrimus, Thos.). 
Other species: C. bacchante, Thos., jelskit, Thos., and 
probably scalops, Gay. 
VII. Aproturix, Waterh. 
Fur long and soft. Coloration normal—generally slaty 
grey with a suffusion of buffy in the dorsal area. Claws not 
elongated. 
Skull with rounded brain-case and long muzzle. Inter- 
orbital region of medium breadth, its edges smoothly rounded. 
Bullee of normal size, not enlarged. 
First molar without anterior notch. 
Genotype. A. longipilis, Waterh. 
Other species: A. hirtus, Thos., suffusus, Thos., france?, 
Thos. 
