200 Bulletin American Museum of Natural History. [Vol. XXXIV, 
Key to the Species and Subspecies of Leptosciurus. 
Smaller, average total length 300-350 mm. 
Tail fringed with white. 
Blackish dorsal line usually obsolete. 
Underparts brownish gray, the pectoral region faintly washed with buff. 
pucherani (p. 200) 
Underparts brownish, strongly washed with ochraceous buff. 
caucensis (p. 203) 
Blackish dorsal line usually prominent. 
Underparts strongly washed with maize yellow. .salentensis (p. 203) 
Underparts washed with white............... medellinensis (p. 201) 
Tail fringed with yellow. 
Underparts ochraceous buff....... Mes herds oa 5s ignitus (p. 204) 
Underparis: antimony yellow: -" Rr oa es oe. trroratus (p. 206) 
Larger, average total length about 385 mm., underparts white. .leucogaster (p. 207) 
Leptosciurus pucheranii pucheranii (Ftzinger). 
Text Ig. 2 (p. 162); Plate VII, Figs..7, 8: Plate XIUI,.Pigs. 5, 6. 
Sciurus rufoniger PucHERAN, Rev. zool., VIII, p. 336, Sept. 1845. Not Sciurus 
rufoniger of Gray 1842, nor of Allen 1877, nor of Alston 1878 (cf. this Bulletin, 
XX XIII, 1914, pp. 152, 153). 
? Sciurus chrysuros PUCHERAN, Rev. zool., VIII, p. 337, Sept. 1845, ‘“Santa-Fe 
de Bogata.”’ 
Funambulus pucheranit Frtzinamr, Sitzb. d. math.-naturw. Cl., LV, Abth. 1, 
p. 487, 1867. 
Macroxus tephrogaster Gray, Ann. and Mag. Nat. Hist. (3), XX, p. 431, Dec. 
1867, part (the Bogotd reference only). 
Type locality— Vicinity of Bogota, Colombia. 
Geographic distribution — The Eastern Andes of Colombia, at altitudes 
of 6200 to 9000 feet. 
Description.— Upperparts reddish brown, the hairs dusky at base tipped 
with ochraceous rufous; a blackish median band, varying from deep black 
to dusky, often nearly obsolete; nose and cheeks dull yellowish gray; 
underparts brownish gray faintly washed with pale yellow, brightest on the 
breast and paler on chin, throat, and abdomen; tail long and narrow, grizzled 
rutous and black, the hairs basally alternately ringed narrowly with rufous 
and black, with a broader subterminal bar of black and conspicuous white 
tips, forming a white edging; ears small but rather long and pointed, well 
haired, dark brown with a reddish tinge; upper surface of the feet nearly 
like the flanks. : 
Total length (5 specimens, collector’s measurements), 312 (300-328) 
mm.; head and body, 165 (150-184); tail vertebre, 145 (135-158); hind 
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