The Chipmunks of the Genus Eutamias. 203 



6. NOTE ON ' TAMIAS QUADRIMACULATUS ' GRAY. 

 Eutamias quadrimaculatus (Gray). Long-eared Chipmunk. 



Tamias quadrimaculatus Gray, Ann. & Mag. Nat. Hist., 3d ser., XX, 435, 

 1807; Allen, Bull. Am. Mus. Nat. Hist, III, 80-82, 1890. 



Tamias macrorhabdotes Merriam, Proc. Biol. Soc., Wash., Ill, 25-28, Jan. 

 27, 1886; Allen, Bull. Am. Mus. Nat. Hist., Ill, 78-80, 1890. 



The material necessary for the final determination of the status 

 and interrelations of the large Chipmunks of the Sierra Nevada 

 was collected by the Death Valley Expedition. The names that 

 have been given to these species are Tamias quadrimaculatus Gray 

 (1867), T. macrorhabdotes Merriam (1886), T. merriami Allen (1889), 

 and T. senex Allen (1890). T. merriami is a very distinct species 

 from the one under consideration, and need not be discussed in 

 the present connection. (See p. 197.) 



Tamias quadrimaculatus was described by Gray in 1867 from a 

 specimen from Michigan Bluff on the west slope of the Sierra in 

 Placer County, California. This specimen is in the rSd post- 

 breeding pelage, as shown by the original description and by a 

 note from Mr. Oldfield Thomas, published by Dr. J. A. Allen 

 (Bull. Am. Mus. Nat. Hist., Ill, p. 82, June, 1890). The species 

 was not recognized by Baird, and Allen, in his Monograph of the 

 SciuridaB (1877), gave it as a synonym of townsendi. 



In 1886 I described, under the name Tamias macrorhabdotes, a 

 long-eared and strikingly colored Chipmunk from Blue Canon 

 in the Sierra Nevada of central California. At this time no speci 

 men of Gray's quadrimaculatus was available for comparison, the 

 only specimen extant (the type) being in the British Museum. 

 Subsequently I came in possession of a single specimen in rather 

 poor pelage from Nevada City, California, which differed from 

 the specimens of macrorhabdotes from Blue Canon (the type lo 

 cality) in having considerably smaller and less distinctly striped 

 ears, smaller post-auricular spots, the shoulders, anterior half of 

 the back, and flanks deeply suffused with intense ferruginous, 

 and the hind feet of the same color, though duller. This speci 

 men was correctly identified by both Doctor Allen and myself 

 as Gray's quadrimaculatus. Owing to the differences just men 

 tioned, Doctor Allen, in his revision of the species of the genus 

 Tamias, concurred with me in admitting Gray's quadrimaculatus 

 and my macrorhabdotes as different species. 



In addition to the material available when Dr. Allen wrote 



