104 NELSON 



In some places it is very abundant, notably on the east slope of the 

 Cofre de Perote above Jico, Vera Cruz, and on the mountains above 

 Tapachula, Chiapas. 



Specimens examined. — Seventy three : from Papantla, Jico, Las 

 Vigas, Jalapa, Cordova, Motzorongo and Catemaco, Vera Cruz; 

 Metlaltoyuca and Huachinango, Puebla ; Reyes and mountains near 

 Santo Domingo, Oaxaca ; Ocuilapa, San Cristobal, Pinabete and 

 Tumbala, Chiapas ; Coban to Clusec and central-western Guatemala ; 

 Truxillo, Honduras. 



SCIURUS NEGLIGENS Nelson. Little Gray Squirrel. 



Sciuriis arisonensis Alston, Biol. Cent. -Am., Mammalia, pp. 125-126, 1880 



(part: from Tampico, Tamaulipas, Mexico). 

 Sciurus deppei A1.1.KS, Bull. Am. Mus. Hist., N. Y., iii, p. 222, 1891 (part : 



from Valles, San Luis Potosi ; and Victoria, Tamaulipas, Mexico ). 

 Sciurus negiigens Nelson, Proc. Biol. Soc. Washington, xii, p. 147 June 3, 



1898. 



Type locality. — Alta Mira, Tamaulipas, Mexico. Type no. 93028 

 U. S. National Museum, Biological Survey Collection. 



Distribution. — Arid tropical forests of lowlands in extreme north- 

 ern Vera Cruz, eastern San Luis Potosi, and southern half of Tam- 

 aulipas, Mexico (below 1000 ft.). 



Characters. — Size of 6". deppei; ears longer and dull rusty ; upper- 

 parts rather pale grayish brown ; underparts white or pale buffy yellow. 

 Pelage soft and rather thin ; tail thin and slender. Teats : p. \ 



a. y 1. y. 



Color. — Upperparts, including top of nose and base of tail, rather 

 pale, finely grizzled grayish brown, generally with a slight yellowish 

 or dull rusty suffusion, most marked posteriorly ; sides of head and 

 neck, and sometimes nape, dingy yellowish brown ; ears varying from 

 dingy rusty to dark ferruginous ; a small dingy white basal patch 

 usually present ; fore feet, outside of legs, and sometimes adjacent part 

 of shoulders, dull gray ; outside of thighs and hind feet usually like 

 rump, but toes sometimes gray ; underparts white, varying to uniform 

 deep fulvous or almost rusty yellow ; inside of thighs pale buffy in 

 white bellied specimens; chin and throat usually white; tail above 

 black, thinly washed with white ; below with broad median area 

 grizzled and varying from yellowish to grayish brown, bordered by a 

 thin line of black and thinly edged with white. Hairs of back black, 

 with narrow subterminal and sub-basal rings of yellowish gray or yel- 

 lowish brown. 



