Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Petriko
1943
June 14
2 mi SE Beegum, 1650ft., Tehama Co., Calif.
soil of
over the slope with intervening spaces
being covered with dry short grass
or remaining bare. One Dipodomys
husmanni and one Perognathus vicinus were
the only mammals caught. The Dipodomys
was taken on bare soil near the base of
an Adenostoma shrub, about the basal
y which there were holes which were very
likely entrances to the nest den. This
specimen (a female bearing two
embryos each 11 mm. long). The Perognathus
similarly was taken near the base of a.
Adenostoma shrub on a patch of
bare soil near three holes which were
large enough to have been made by
Dipodomys. Adjoining the several square
feet of bare soil was a patch of
dried grass. The soil was brown,
fairly loose, with an admixture of
a gray, shale-like rock weathered to
a gravel consistency. The bank wall which the
Perognathus was taken was a mixture goatmeal and
June 15.
Pit out 10 traps over the same terrain.
slopes as yesterday in the hope of getting
at least the male to the Perognathus I
cought yesterday (a lactating female). Not a
single mammal was taken(!!) in spite of
efforts to place traps into runways, near