16 



Annals of the Carnegie Museum. 



length 36.2 versus 41.3 in T. v. pothce) the nasals being noticeably- 

 smaller in proportion, and the incisors lighter. 



Measurements. 



No. 301 cf, 



(Type), 



mm. 



Length of head and body 140. 



Length of tail 178. 



Length of pes , 31. 



Greatest length of skull 36.2 



Basilar length of skull ' 26.8 



Condylo-incisive length 29.2 



Zygomatic breadth 17.5 



Interorbital breadth | 6.5 



Squamosal breadth > 15.5 



Length of nasals 15. 



Breadth of nasals 3.5 



Length of diastema ' 8.8 



Alveolar length of upper-tooth row. . . I 6. 



Length of palatal foramen '< 6. 



Length of bullae 10.5 



Depth of brain-case i 11. 2 



Depth of maxillaries at fronto-nasal 



suture 8.8 



Length of mandible 18.2 



No. 302 cf, 

 mm. 



133- 

 178. 

 31-5 



29. 

 33-2 

 18.2 

 6.3 

 15.7 



No. 36 cf, 



mm. 



9.6 

 6.3 



7. 

 10.8 

 II. 7 



8.8 

 19.2 



126. 

 178. 

 32. 

 37-2 

 27-5 

 32.4 

 18.4 



6.5 

 153 

 I5-I 



3-4 



9- 



6. 



6.5 

 10.9 

 II. 7 



8.6 

 18.6 



No. 

 16342s cf , 

 U.S.N. M., 



144. 



178. 

 35-5 

 41-3 

 31- 

 36.9 



7-1 

 17- 

 19. 



4.1 

 10.6 



6.6 



7-5 

 II. I 

 12.5 



lO.I 



21.4 



Pelage. — Dorsal area pinkish buff (cf. Ridgway) heavily mottled 

 with black and sharply defined from the white of the under parts. 

 Individual hairs of upper pelage slate-gray at base and light pinkish 

 buff at tips, which are surtipped with black over darker median area; 

 latter portion also lightly lined with longer black hair; coloration of 

 outer portions of legs continuous with fianks and shoulders, inner 

 portions with white of lower coat; lids and anterior basal corners of 

 eyes dusky; grayish markings above and behind eyes; ears bufif at 

 base, and dark at tips as in T. v. pothce; tail well-clad, dark above and 

 light buff below, with hairs at the end elongated; upper surface of 

 feet and toes thickly covered with white hair, soles bare, under surface 

 of toes very slightly haired; claws much weaker than in T. v. pothcB, 

 translucent to dark. 



Besides the type the collection of the writer contains an old adult 

 (No. 302, cf ) and two immature specimens (Nos. 304 and 316) from 

 the type-locality, together with a mature male from Black Abai Lake. 

 The latter closely resembles the type, but is a trifle lighter in tone. 

 The young are very black over the median dorsal area, the rump, and 



