198 FlKLD Coi.L'MBIAN Ml SEl'M ZOOLOGY, Vol.. I. 



ley, Calaveras Co., 6; Silver Lake, Amidor Co., 24; Woodford, 

 'Alpine Co. , 14; Mt. Siegel, Douglas Co., Nevada, 12; Winters 

 Mine, Douglas Co., Nevada, 3; Edgewood, Douglas Co., Ne- 

 vada, 3. 



These specimens agree, apparently, with Dr. Merriam's des- 

 cription of the type (1. c), but the legs and feet are very pale, 

 having in most of the examples no suffusion of ochraceous, being 

 in many instances almost white. The under surface of the tail 

 varies also considerably in depth of color, in some being chestnut, 

 and in others ochraceous, these from the same localities. The white 

 stripe in some is continued to the tail, while in others it does not 

 go beyond the black stripes. A marked difference also is observ- 

 able in the amount and depth of color in the ochraceous on the 

 neck and shoulders; sometimes there is hardly a perceptible dif- 

 ference between the deep color on the top of the head, neck, 

 shoulders and face, while again in other examples, except on the 

 head, it would be almost entirely absent ; and these specimens 

 are all taken in the same months, from the same localities, and 

 of both sexes. The examples were obtained from the latter part of 

 June to the middle of August. The specimens without the ochra- 

 ceous lines on the neck and face, present a very different 

 appearance, and seem like another race, and the animal evi- 

 dently varies greatly during the year in the depth of its coloring, 

 and also in the distribution of the lines, as well as in the size and 

 extent of the prominent white stripe. 



ii. Spermophilus beecheyi. 



Arctomys (Spermophilus) beecheyi. Rich. Faun. Bor. Amer., 

 vol. i, 1829, p. 170, pi. xii B. , 



Specimens, 28, as follows: Carmel, Monterey Co., 2; Alum 

 Rock Park, 10; Mt. Hamilton, Santa Clara Co., 15; Pyramid 

 Peak, Eldorado Co., i. 



These examples represent adult and young; those, however, 

 from Mt. Hamilton being all young. The specimen from Pyra- 

 mid Peak, while possessing the general dark coloration character- 

 istic of the species, has considerable more white upon the head 

 and shoulders than is usually seen in S. beecheyi, and is leaning, 

 apparently, towards 5. b. fisheri, which is met with a short dis- 

 tance further toward the east, in Douglas Co., Nevada. The 

 young have a much paler pelage than the adults and are covered 

 with buffy white spots. 



