150 Nelson New Squirrels from Mexico and Central America. 



Remark*. In general appearance this species is very similar to 8. collifi, 

 from which it may be distinguished by the distinct black borders and 

 large basal white patches of the ears ; the extension of color of back over 

 outside of legs and thighs and the decidedly white upper surface of feet 

 and toes. The under fur is darker on back, with scarcely a trace of 

 lighter tips, and whiter on belly. The back and sides are the same in 

 goldmani but for a little heavier wash of black on middle of back. The 

 most intensely colored specimens are as buffy on dorsal surface as the 

 brightest specimens of S. colliei, but this added shade of buffy is brightest 

 on nape and ears in colliei and on the rump of goldmani. The ears of 

 colliei are uniform or differ but little in color, while in goldmani the varied 

 markings are strong characters. 



This species is named in honor of my field assistant, Mr. E. A. Gold 

 man, to whose faithful aid is due much of the success of our explorations 

 in Mexico. 



Sciuius boothiee managuensis subsp. nov. Managua Squirrel. 



Type from Managua Eiver, Guatemala. No. 62470, c? ad., U. S. Nat. 

 Mus. Coll. Collected Feb. 12, 1895, by Mrs. C. McElroy. 



Distribution. Managua River, eastern Guatemala. 



Characters. Smaller than typical S. booth! fe, with coarse, harsh hairs; 

 blackish yellow on dorsal surface, buffy -yellow below. 2 upper premo- 

 lars. 



Color. Above, including top of head, outside of legs, flanks and base 

 of tail, grizzled black and dingy fulvous, rather grayish ; top of head and 

 back washed with black, the subterminal yellowish showing through ; 

 legs usually deeper yellowish, in marked contrast; top of feet shading 

 into grizzled buffy. Sides of nose, cheeks, chin, and sometimes throat, 

 dingy grayish with a dull fulvous shade ; rest of lower parts bright buffy- 

 yellow. Ears distinctly margined with black, a conspicuous patch of 

 huffy-yellow fur behind base and a th in tuft of rufous hairs near tip. Tail 

 flattened and rather narrow : above, black washed with white ; below, 

 grizzled with grayish-fulvous along middle with a band of black along 

 each side, heaviest at tip and bordered externally with white. 



Measurements. Type specimen : Total length 51 2.5 ; tail vertebras 250.5 ; 

 hind foot 57. 



Remarks. Among the four specimens examined two agree closely in 

 color with the type, the other, apparently immature, is much grayer 

 above and the color of the back extends down on the legs to the feet, 

 the latter being washed with buffy ; below it is dingy-buffy. 



Sciurus albipes quercinus subsp. nov. Oak Woods Squirrel. 



Type from mountains on west side of Valley of Oaxaca, Oaxaca, Mex 

 ico. No. 68202, 9 ad., U. S. Nat. Mus., Biological Survey Coll. Collected 

 Sept. 15, 1894, by E. VV. Nelson and E. A. Goldman. Grig. No. 6768. 



