NO. 1101. PEOCEEDIXGS OF THE NATIONAL MUSEUM. 51 



not meet below the acetabula. The space between the sacral vertebrte 

 and pelvis is closed in above by osseons bridges leaving only two pairs 

 of foramina of moderate size. 



The femur is a fifth shorter than the tibia. The fibula joins the latter 

 a little above the middle. 



The OS f<(lrifor)iie is large and strap-shaped, ouly slightly curved and 

 with an oblique proximal articnlate surface. Terminal phalanges bifid. 



KEY TO SPECIES OF SCAPANUS. 



A. Premolars 5. 



((. Color blackish. Face long; suborbital bridge broad — 



aa. Size very large (total length, 184 mm. ale.) toicnseiidi (p. 51.) 



bb. Size very small (total length, 158 mm.) orariu.s (p. 52.) 



/'. Color brown or brownish silvery. Face short; unicnspidate teeth crowded. 

 Suborbital bridge slender. Size moderate californiciis (p. 52.) 



B. Premolars!. Color dusky brown. Size very small (total length, 135 mm.). 



anthoniii (p. 53.) 



SCAPANUS TOWNSENDI (Bachman). 

 TOWNSENDS,MOLE; OK OREGON MOLE. 



Hcalops canadensis, Richakdsox, Fauna P>or. Amer., pt. 1, 182i»,-p. 9. [Not of 



Uesmarest or Harlan.] , 



Scalops Townsendii, Baciimax, Journ. Acad. Nat. Sci. Phila., VIII, pt. 1, 1839, 



p. 58; Proc. Boston Soc. Nat. Hist., I, 1841, p. 41; Boston .Journ. Nat. 



Hist., IV, No. 1, 1842, p. .SI; .Journ. Acad. Nat. Sci. Phila., VIII, pt. 2, 1842, 



p. 291. 

 Scalops laiimaniis, Bachman, Boston .Journ. Nat. Hist., IV, No. 1, 1842, p. 34. 

 Scapaiiiis l'()w[n]seitdii, Pomel, Archiv Sci. Phys. & Nat., IX, 1848, p. 247. 

 Scalops melalltscens, Cassin, I'roc. Acad. Nat. Sci. Phila., VI, 1853, p. 242. {Noinen 



nudum.) 

 Scalops (incus, Cassin, Proc. Acad. Nat. Sci. Phila., VI, 1853, p. 299. 

 Talpa ta-niata, LeConte, Proc. Acad. Nat. Sci. Phila., VI, 1853, p. 327. 



Size very large. Color blackish. Tail twice as long as the fore foot 

 (without the claws); the latter shorter than the hind foot. Face long 

 (interval between first upper iucisor and last premolar equal to length 

 of the three upper molars). 



Upper unicuspid teeth separated by e<|ual intervals. First lower 

 incisor a|)})roaching the second in height. 



Suborbital bridge broad and pressed close to the side of the skull. 

 Coronoid process of mandible broadly truncated. 



DimensiouH (No. 21*12. Fort Steilacoom, Washington. Female. Ah;.) — 

 Total length, 184 mm.; head and body, 141 mm.; head, 52..5 mm.; tail 

 vertebra?, 39.5 mm. ; length of hind foot (without claw), 20.5 mm. ; length 

 of fore foot (without claw), 10 mm. 



Areragediminsionsofslulls. — Total length, 41.4 mm.; mastoid breadth, 

 19.!) mm. ; length of palate from outside of incisor, 18.6 mm. 



DtHtrihution. — Washington and Oregon, between the Cascade Moun- 

 tains and coast range, extending iu the extreme northwestern portion 

 of California to Crescent City. 



