52 liEVlSION OF AMERICAN MOLES— TRUE. 



SCAPANUS ORARIUS, new species. 

 COAST MOLE. 



Similar to H. townsendi, but representing nearly the opposite extreme 

 as legaiils size. Ilead and body not ex(;eeding 128 mm.; color, dark. 



Sknll and teeth as in S. totcn-sendi, and the face long. 



Dimensions (No. 3480, G. S. Miller. Sumas, British Columbia). — Total 

 length, 158 mm.; tail, 30 mm.; hind foot, 20 mm. 



Dimensions of si- nil. — Total length, 32.8 mm.; mastoid breadth, 10 

 mm.; length of palate from outside of incisor, 11.3 mm. 



Geographical distribution. — Seacoast of Washington and Oregon, from 

 the Coquille River northward, and along the shores of Puget Sound to 

 Simiahmoo and to Chiloweyuck Depot and Sumas, British Columbia. 

 Fort Walla Walla, Washington. 



Ty2)e. — No. 381, U.S.N.M. Female. Shoalwater Bay, Washington. 

 August 30, 1855. Dr. J. G. Cooper. 



SCAPANUS CALIFORNICUS (Ayres). 

 CALIFOKMA MOLE. 



Scalops califorincits, Aykes, Proc. Calif. Acad. Nat. Sci., I, 1855, p. 54. 

 Sca2)ani,s dUatiis, Tkue, Proc. U. S. Nat. Mus., XVII, 1894, No. 999, p. 242. 



Size moderate (with a considerable geographical variation), not 

 reaching that of *S. ton-nsotdi. Color gray-brown, often pale or more 

 or less suffused with rust color. Face short (the interval between the 

 tirst upper incisor and last premolar equal only to the first and second 

 upper molars). 



Unicuspidate teeth crowded and more unequal in size than in S. town- 

 sendi. First lower incisor very short; second, long and canine-like. 



Skull delicate; suborbital bridge slender, not pressed in toward the 

 sides of the skull. 



Average dimensions (1 fresh specimens from Nicasio. Marin County, 

 California). — Total length, 179 mm.; tail vertebra^, 35 mm. 



(No. 12021, IT.S.N.M., ale; Santa Barbara, California, male, adult: 

 Total length, 154 mm.; head and body, 121 mm.; head, 45.5 mm., tail 

 vertebra^, 33.5 mm.; hind foot (without claw), 17 min.) 



Average dimensions of skulls (7 adults from Nicasio, California). — 

 Total length, 30.3 mm.; length of interval between first upper incisor 

 and last premolar, 5.5 mm.; greatest mastoid breadth, 17.4 mm.; 

 greatest zygomatic breadth, 14.4 mm. 



(Average dimensions of skulls from Alhambra, San Bernardino, and 

 San Gabriel, southern California : Total length, 32.3 mm.; greatest 

 mastoid breadth, 15.9 mm.) 



Geograpliieal distribution. — All California west of the coast range 

 (except the extreme northwestern portion), and the Sierra Nevadas at 

 varying altitudes, and east thereof at Owens Lake, Lake City (Modoc 

 County), and Lake Tah(»e, California, and Fort Ivlamath, Oregon. \ 



Type loeality. — San Francisco, California. I 



