1915.1 Allen, Review of the South American Sciuride. 309 
Mesosciurus gerrardi valdivie subsp. nov. 
Mesosciurus gerrardi gerrardi ALLEN, antea, p. 236, part (only the Valdivia speci- 
mens). | 
Type, No. 37674, 9, ad., Puerto Valdivia (alt. 360 ft.), lower Rio Caura, Dec. 23, 
1914;. Leo EK. Miller. | 
Similar in general coloration to M. g. choco, but without a black tail-tip. Upper- 
parts finely grizzled black and ochraceous, giving the general effect of blackish finely 
punctated with yellowish; whole of the mid-dorsal region much darker than the 
flanks, ochraceous prevailing on the sides; ventral surface, including inside of limbs, 
reddish orange; fore limbs and feet externally reddish orange, usually extending 
upward over the shoulders; hind limbs externally like the flanks; tail above blackish 
for the basal fourth, the rest red at the surface, including the tip; under surface of 
tail centrally grizzled black and ochraceous, broadly fringed with red, and with a 
broad submarginal band of black. Type (collector’s measurements), total length, 
468 mm.; head and body, 250; tail vertebrae, 218; hind foot, 59. 
Puerto Valdivia, 6 specimens; Frijolera (near Puerto Valdivia, alt. 5000 ft.), 6 
specimens. 
Strongly resembles dark specimens of M. g. choco of the Panama, region and ad- 
joining west coast district of northern Colombia, but is darker, with the ochraceous 
tipping of the hairs of the upperparts much shorter, and the tail without the broad 
black tip characteristic of choco. ‘The series of 12 specimens is very uniform in 
coloration and other features. 
Page 245. Mesosciurus gerrardi salaquensis (Allen). Seven specimens: 
Alto Bonito (headwaters of Rio Sucio, alt. 1500 ft.), 3; Dabeiba (alt. 2000 ft., near 
Alto Bonito), 4. 
These specimens agree well with the type series of salaquensis, and extend the 
known range of salaquensis southeastward to Dabeiba. 
