Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
J.R.
ALCORN
1938
Citellus townsendi mollis
MAR. 30
1938
9 mi. W. Fallon, 4000 ft., Churchill County, Nevada.
On March 30 I placed poison oats (strychnine) over
ten (10) acres of Sagebrush near an alfalfa field and
picked up thirty-six (36) Squirrels. Twenty-four were
females and thirteen(13) were males. Females reported
as follows:
Embryo
Found
Size of
Embryo
EMBRYO ON
LEFT SIDE
Embryo on
Right Side
10
5/8 inch diameter
5
5
11
5/8 inch diameter
5
6
9
3/4 inch diameter
2
7
11
7/8 inch diameter
4
7
13
1 inch diameter
7
6
8
5/8 inch diameter
3
5
9
7/8 inch diameter
3
6
10
3/4 inch diameter
5
5
11
13/16 inch diameter
6
5
11
15/16 inch diameter
5
6
11
15/16 inch diameter
7
4
6
3/4 inch diameter
3
3
12
15/16 inch diameter
6
6
9
7/8 inch diameter
4
5
10
13/16 inch diameter
6
4
12
3/4 inch diameter
6
6
9
5/8 inch diameters
4
5
8
7/8 inch diameter
4
4
12
15/16 inch diameter
4
8
9
15/16 inch diameter
4
5
10
3/8 inch diameter
7
enlarged tubes
3/8 inch diameter
7/16 inch diameter
7/16 inch diameter