The Chipmunks of the Genus Eutamias. 197 



post-breeding pelage. The hairs of. the upper side of the tail have a broad 

 median Ijand of fulvous which shows through in lioth pelages, giving the 

 tail a rich fulvous glow not present in the other memliers of the series 

 except — and to a less extent — in tovnacndi in post-l)reeding pelage. 



Jtaitge. — Wooded or brushy hills of northern California west of tlie 

 Sacramento Valley and north of San Francisco Bay. Northern liniit of 

 range unknown. Specimens have been examined from Nicasio north- 

 ward to Sherwood, Cahto, and the head of Eel River. On the west the 

 range of ////;'?.s-(' joins that of oclirogoiyx. 



Eutamias merriami (Allen). Merriam's Chipmunk. 



General characters. — Tail very long ; ear stripes and post-aui'icular spots 

 not sharply defined and not consi)icuous ; under parts white ; general 

 color of upper j>arts grayish in winter pelage, fulvous in summer pelage; 

 outer i>air of light stripes whitisli and always conspicuous ; dark dorsal 

 ^stripes obscured by fulvous-tipped hairs, the median one only showing 

 any clear black ; sides of face never washed with yellowish or ochraceous ; 

 median facial stripe continuous in front of eye, usually dusky, bordered 

 on both sides by fulvous ; inner pair of pale dorsal stripes grizzled grayish. 



Range. — Brush-covered slopes of the Upper Sonoran and Transition 

 zones in southern California from the Cuyamaca, San Jacinto, and San 

 Bernardino Mts. northward in the coast ranges to San Francisco Bay, and 

 along the west slope of the Sierra to the Yosemite Valley. In the Sa!i 

 Bernardino Mts. merriatnl occurs as far west as Wilson Peak, beyond 

 which it is sejiarated by a considerable gap from Mt. Piiios, where it is 

 abundant. Owing to the low altitude it inhabits, its range is practically 

 continuous arouml the southern end of the San Joaquin Valley, speci- 

 mens having heen collected on Tehachain Mt. and at Havilah near 

 Walker Basin. The colonies inhabiting the Cuyamaca, Smith, San 

 Jacinto, and San Bernardino Mts. are isolated. The form inhabiting the 

 coast strip between Santa Cruz and San Francisco Bay is a little moie 

 highly colored than the typical animal, and has been named pricei. 



Key to Members of Townsendi Guoup in all Pelages. 



Ear stripes and spot liehind ear well defined ; tail not exceed- 

 ingly long. 



Under parts wlide (not washed with fulvous). 



Upper parts (excepting strijies) of ntiifonn color from 

 post-auricular spots to tail. 

 Color yellowish olive-gray (winter pelage) or dull 



yellowish fulvous (post-breeding pelage) townsendi. 



Upper parts not of uniform color. 



Rump grizzled gray ; tail small, narrow, dull ful- 

 vous below senex. 



Rump grizzled golden-brown ; tail large and 

 bushy, deep chestnut below klndsi. 



4r,— HioL. Soc. Wash., Vol. XI, 1897 



