378 Univt rsity of < 'alifornia Publications in Zoology [Vol. 10 



In eaeh case the capture of a shrew was a wholly fortuitous 

 event. When special pains were taken in setting and baiting, 

 with shrews particularly in view, nothing resulted. All the 

 shrews were trapped in mouse traps baited with rolled oats. Tii 

 one case the victim was clipped over the rump backwards, show- 

 ing that it had been merely running over the trap. 



The specimen from Strawberry Valley was caught beneath 

 an overhanging mat of roots four inches from running water, the 

 whole place over-shadowed by alders. In Tahquitz Valley the 

 shrews were caught beneath willows and veratrum plaids on and 

 around the meadows. 



As far as shown by our collecting, this species in this region 

 belongs to the riparian association of the Transition zone. 



Notiosorex crawfordi Baird 



Desert Shrew 



A single specimen secured no. 1928) near Dos Palmos 

 Spring, 3500 feet. .May 31. This was caughl in a mouse trap set 

 on the bare sandy ground of a broad mesa among yuccas and 

 cactus see pi. ID, fig. 1 i. The trap was baited with rolled oats; 

 but the fad that a grasshopper was found crushed in the trap 

 along with the shrew makes it likely that first the insecl was 

 attracted by the oats, thus constituting itself a "live bait" which 

 in turn att faded the shrew. 



Other mammals found in the same line of traps the same 

 morning were Perodipus, Dipodomys, two species of Perognathus, 

 a Peromyscus, a Neotoma, and an antelope chipmunk a most in- 

 congruous assemblage ! Tht 1 shrew was not nearer than 150 yards 

 to the nearest portion of the watercourse. 



The specimen is a fully adull female in molt, the pelage 

 dorsally being patchy, plumbeous and dull brownish. The meas- 

 urements are: length 82 mm., tail vertebrae 28, hind foot 10. The 

 mammae were large, evidently functioning. 



Scapanus latimanus occultus Grinnell and Swarth 

 Southern California .Mole 

 Signs of moles came to notice very generally over the San 

 •Jacinto and Santa Rosa mountains. Surface runwavs were seen 



