132 Nelson Tm<> JVew Squirrels from Me-rico. 



Distribution. Lowland forests of eastern Tabasco, southern Oarn- 

 peche, and southern and eastern Yucatan. 



Subapecific characters. General style of coloration similar to typical 

 Sciurus deppei from northern Vera Cruz, but much paler, more rusty 

 reddish on upperparts; outside of forelegs and feet clear gray, same 

 color extending up as a well defined wash on side of shoulders; tops of 

 hind feet like back but edged and sometimes washed with clear gray; 

 top of tail more heavily washed with white; underparts white or grayish 

 white distinctly clearer than in true A>. deppei with no trace of buffy 

 suffusion. 



Skull. Nearly typical but with rather heavier rostrum, broader 

 nasals; smaller and rounder audital bullae. 



Dimensions of type (measured in the flesh. Total length 373; tail ver 

 tebrae 108; hind foot 52. 



Remarks. The occurrence of a form of Sciurux deppei in the lowland 

 forests of Campeche and Yucatan was quite unexpected. The new form 

 lives in a drier climate than true 8. deppei and this is well indicated by 

 its clearer, more vivid, colors. 



