NO. 1101. PBOCEEDINGS OF THE NATIONAL MUSEVM. 53 



SCAPANUS ANTHONYI, J. A. Allen. 

 ANTHONY'S MOLE. 

 f^capanuft aiitJioinji J. A Allen, Bull. Amer. Mas. Nat. Hist., V, 1893, p. 200. 



Smaller than the average of specimens of ^S', califotniicus from south- 

 ern California, and the color considerably darker. Length, 135 mm.; 

 tail, 20 mm. 



^'Cranial ehararters. — Similar in general to those of *S'. foirnsenclii, 

 excei)t that the interorbital and rostral portions of the skidl are rela- 

 tively broader. The fourth ])remolar on one side, however, is wanting, 

 and on the other is rudimentary; but this maybe abnormal.' Extreme 

 length, 30 mm.; basilar length, 28.5 min.; least interorbital breadtli, 

 7.0 mm. ; greatest mastoid breadth, 15.3 mm. : lower jaw, incisive border 

 to condyle, 22.4 mm. 



"T//7>e.— No. ^§if, S ad., San Tedro :\Iartir Mountains (alt. 7,000 

 feet). May 8, 1893. Coll. A. W. Anthony. 



"This species is based on a single male specimen, and, although so 

 small, the worn condition of the teeth show it to be an old individual. 



"In general bulk S. anthonyl is less than half the size of <S'. toivnsendii 

 [read S. calif ornicus] from Nicasio, California." (Allen.) 



GEOGRAPHICAL DISTRIBUTION. 



The distribution of the moles of the genus ^ScaiicniiiH on the Pacific 

 Coast, so far as it may now be known, presents many interesting pecul- 

 iarities. The range of the genus extends from Chiloweyuck Depot in 

 British Columbia just north of the United States boundary to the San 

 Pedro Martir Mountains, Lower California. In four instances speci- 

 mens have been taken from east of the Cascades and Sierra Xevada 

 Mountains, namely, at Fort AValla Walla, Washington; Fort Klamath, 

 Oregon; Bijou, on Lake Tahoe, California, and Olancha, on Owens 

 Lake, California.'- Otherwise, all the specimens examined as well as 

 those mentioned in the literature are from localities west of the summits 

 of the Cascades and Sierra Kevadas, and south of the latter mountains. 

 The moles are abundant about Puget Sound and in tlie western valleys 

 of Washington and Oregon, as shown by both specimens and records.-' 



They have also established themselves east of the mountains at Fort 

 Walla Walla, where three were obtained by Major C. E. Bendire. Far- 

 ther south they have passed through the mountains to the region of 



'I find only three premolars on either side. 



^I ha\-e recently noticed a specimen in the collection of the Department of Agri- 

 culture from Lake City, Modoc County, California, June 15, 181'5. It is of a silvery 

 color and resembles the Shasta County specimens. The fur is lonij and silky, but 

 dull. The skull, which is not adult, is of the following dimensions: Total length, 

 35 mm.; interval between first incisor and last premolar, 5.8 mm.: mastoid 

 breadth, 15.6 mm. 



'"'Well known to the farmers and settlers in the valleys of Oregon." (And. 

 & Bach., Quadrupeds, III, p. 219.) 



