Mar. 1899. MAMMALS ov THE OLYMPIC MOUNTAINS ELLIOT. 275 



riorly and 7 mm. in length. Pterygoids 3 mm. long, their fossa 

 wide. Length of basi-sphenoid and basi-occipital, 4.5 mm. 

 First and second uriicuspids largest and nearly equal, third and 

 fourth much smaller, the fourth larger than the third. Molars 

 large, combined length along alveolus, 3 mm. 



Compared with the skull of S vagrans, that of this species is 

 longer, with the brain case broader anteriorly, wider palate and 

 much longer pterygoids. Unicuspids much larger. 



Compared with skull of 6". obscurus, the brain case is broader 

 and longer as are also the nasals. The palate is narrower, the 

 unicuspids are considerably larger and the premaxillaries descend 

 to the symphysis at a much more acute angle. The difficulty of 

 obtaining perfect skulls of these small mammals make a minute 

 comparison usually impossible, as often the occipital region is 

 wanting, or the brain case crushed in the traps, and out of five 

 specimens of obscurus there is but one fairly complete skull. The 

 species, however, are quite different. Total length, 120 mm. ; 

 tail, 54; hind leg, 13. 



Type: Happy Lake, Olympic Mountains, Clallam County 

 Washington. 



Two specimens from Happy Lake. 



The figures exhibit outline of upper jaw and profile of tooth 

 row, and the upper tooth row looked at from above. They are 

 'about five and a half times greater than natural size. 



FAM. TALPID.E. 



29. Scapanus townsendi. 



Scalops townsendi. Bach. Journ. Acad. Nat. Scien., Phil., 

 1839, vol. viii., pt. i, p. 58. 



One specimen only of this large mole was obtained, found upon 

 the Solduck trail leading to the Hot Springs, killed by some ani- 

 mal, possibly a hawk. From the locality it ought to be S. ora- 

 rius True, but its large size would seem to show that it must be 



