1898.] NATURAL SCIENCES OF PHILADELPHIA. 349 



garded as true asiaticus, resembles the members of the brightly col- 

 ored, black-striped quadrivittatus- group. That Pallas had before 

 him a specimen of the latter type, is clearly proved by his excellent 

 description. The back he says is marked with five black stripes, 

 of which the middle one extends from nape to base of tail, the outer 

 from shoulder to thigh. 4 The specific name asiaticus, based on this 

 description, is obviously inapplicable to an animal which has only 

 one, or at most three, black dorsal stripes. The Chinese form, on 

 account of its striking resemblance to the American Eutamias senex 

 may be called : 



Eutamias senescens sp. nov. 



Tamias (Eutamias) asiaticus Rhoads, Proc. Acad. Nat. Sci. Philadelphia, 

 189S, p. 122. (Nee Sciurus striatus a asiaticus Gmelin, 1788, nee Tamias 

 asiaticus Allen, 1890). 



Type.— Adult 9 (skin and skull) No. 83,395, United States 

 National Museum, collected August 21, 1896, on low barren hills 

 fifteen miles west of Peking, China, by Geo. D. Wilder. 



General characters. — Much paler and grayer than Eutamias 

 asiaticus ; only the middle part of central dark stripe constantly 

 black ; feet larger than in a specimen of supposed asiaticus from 

 * Fort Ulba, Siberia.' 



Color. — Type specimen in fresh post nuptial pelage : sides pale 

 yellowish-brown, becoming grizzly gray at shoulders, rump tinged 

 with orange rufous; crown slightly browner than shoulders and 

 nape ; sides of head yellowish-gray, with the usual stripes, the latter 

 light brown and ill defined ; ears concolor with crown, a whitish 

 stripe along posterior border on outer side, a faint yellowish wash 

 within, belly soiled whitish ; tail with three bands of color, a broad, 

 pale yellowish, median area, followed by a black subterminal band 

 and a white border, the pattern very distinct beneath but obscured 

 on the dorsal surface, where in addition to the three color bands 

 normally present, the hairs have dusky bases ; median dorsal stripe 

 extending from nape to base of tail, dusky brown anteriorly, becom- 

 ing black near middle and fading to pale reddish-brown posteriorly ; 

 second stripe shorter and slightly paler than first; outer stripe 

 broader than either of the others, much paler and less well defined ; 

 outer white stripe dusky whitish (about like belly), slightly broader 



4 " Dorsum fasciis quinque nigris, longitudinalibus striatum, quarum media 

 a nucha ad caudam, proxima? a cervice ad clunes, extimje a scapulis ad femora 

 protenduntur." 



