20 PROCEEDINGS OF THE ACADEMY OF [Jail., 



Remarks. — While no specimens of neomexicanus in summer pelage 

 are available, the great difference in color, aside from the larger size and 

 distinctive cranial characters, lead to the opinion that a very distinct 

 geographic form of the neomexicanus type is represented in this mate- 

 rial. Two topotypes of the latter form from the collection of the Bio- 

 logical Survey were examined in this connection, and also four speci- 

 mens (including the type) of mogollonensis from the American Museum 

 collection. No close relationship exists with the latter form, which is 

 of a more grizzled and smoky coloration, as well as having the skull 

 rather different in character. 



Eutamias cinereicollis canipes Bailoy. 



1902. Eiitn7»ias cinei-eicollis canipes Bailey, Proc. Biol. vSoc. Wash., XV, p. 



117, June 2, 1902. (Guadalupe Mts., ElPaso county, Tex.) 



The material at hand shows that this form is well distributed over the 

 higher portions of the White Mountains, while information from a reli- 

 able source gives it as occurring at Cloudcroft. Material has been 

 examined from the following localities: Forks of Ruidoso, Rio Ruidoso, 

 Mescalero and Hale's Ranch, Ruidoso. 



Compared with E. cinereicollis, (Allen) this form is readily differenti- 

 ated by the diagnostic characters given by Bailey — the paler and duller 

 ochraceous tints, the white tips to the hair on the upper surface of the 

 tail, and b}^ the grayer feet. One differential character which seems to 

 have been overlooked in the original description is the absence of solid 

 black in the lateral dorsal stripes. In all the specimens (7) examined 

 these are mixed blackish and rusty, while in cinereicollis the centers 

 at least are solid black. 



Eutamias quadrivittatus (Say). 



1823. Sciurus quadrivittatus Say, Long's Expedition to Rocky Mts., II, 

 p. 4.5. (.Vt the exit of tlie Arlvansas river from the foothills, Colorado.) 



One specimen from Canoncita, above Cleveland, Mora county, N. M., 

 collected by Emerson Atkins, and submitted by Prof. Cockerell, is in- 

 distinguishable from specimens from Boulder, Colo. 



Citellus spilosoma arens (Bailey). 



1902. Spermophilus spilosoma arens Bailev, Proc. Biol. Soc. Wash., XV, p. 



118, June 2, 1902. (El Paso, Tex.) 



Three specimens of this form from the vicinity of Alamogordo, Otero 

 county, N. M., are identical with a series from El Paso and Fort Han- 

 cock, Tex. A young specimen from Mesilla, N. M., is clearly referable 

 to this form. 



