Frick: New Abyssinian Rodents. 9 



Pelage. — Exceptionally soft and long; median and posterior portions 

 of back mottled saccardo-umber;'' flanks pinkish buff and sharply 

 defined from gray of underparts. Main coat bi-colored; slate-gray 

 basal fur tipped dorsally with cinnamon to pinkish bufT, and ventrally 

 with white; grayish tone of underparts due to prominence of dark 

 basal fur; mottled effect of upper back due to same cause together with 

 intermixture of coarser black hair; hair of rump max. 24.5 mm.; outer 

 portions of arms and thighs pinkish buff mixed with gray, inner portions 

 gray; upper portions of carpus, tarsus, and feet thickly covered with 

 white hair, which projects beyond the light-colored claws; under sides 

 of feet flesh-colored; pollex rudimentary, with nail in place of claw; 

 tail sub-equal or equal to combined length of head and body (14 an- 

 nulations per 10 mm.) light flesh-colored, thickly covered with white 

 hair. 



Besides the type the collection of the writer contains four other 

 specimens: No. 12, an old female, No. 13, an immature specimen 

 taken at the Inyala Camp, and two younger specimens (Nos. 32 and 24) 

 captured at Hora Mountain Base Camp. 



Measurements. 



No. II cf, 

 Mm. 



No. 12 9, 

 Mm. 



No. 32 cf , 

 Mm. 



No. 24 9 , 

 Mm. 



Length of head and body. 



Length of tail 



Length of pes 



Greatest length of skull . . 



Basilar length 



Condylo-incisive length . . 



Zygomatic breadth 



Interorbital breadth 



Squamosal breadth 



190 

 161 



31-5 

 41. 1 

 33-8 

 38.8 

 21 

 3-4 

 15 



176 

 164 

 31-5 



Length and breadth of nasals | 19.4 X5 ( 18 X5 



Length of diastema j 12.4 12 



Alveolar length of upper tooth-row .... j 9.1 j 8.8 



Length of palatal foramen 1 10.3 j 10 



Depth of brain-case 10.7 



Length of bullae i 6 



Depth of maxillaries at fronto-nasal 



suture ID 



Condylo-incisive length of mandible.. . j 25 



144 



31 



38.4 



32.3 



37 



20 



4.2 

 IS 

 17XS 

 II-5 



8.4 



9.2 

 10.3 



6 



9.6 

 23-8 



144 

 144 

 32 

 36.3 

 30.2 

 34-8 

 18.8 

 4.2 

 14.1 

 4.6 

 10.2 

 8 



8.5 



10.2 



5-8 



8.5 

 21.5 



Genus Otomys. Cuvier. 

 The collection contains two comparatively light-colored species of 

 Otomys with the incisive grooving, molar lamination, and soft, thick 

 * Ridg^vay, "Color Standards and Nomenclature," 1912. 



