Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
J.R.
Alcorn
1938
Thomomys bottae canus
(16)
Feb. 10
1938
2 mi E Fallon, 4000 ft., Churchill County, Nevada.
Pocket gopher information collected near Fallon,
Nevada in the Harmon District.
Total Tail H.Foot Sex Ovaries
9 2 5/16 1 5/16 ♀ No embryo found.
9 5/16 2 5/16 1 3/16 ♂
10 5/16 2 5/16 1 1/16 ♂
9 3/16 2 1/16 1 3/16 ♀ No embryo found.
10 5/16 2 1/16 1 1/16 ♂
10 5/16 3 1 4/16 ♂
8 1/16 2 3/16 1 7/16 ♀ 4 Embryo found 1/2 developed.
Embryo right side 3 embryo leftside
8 1/16 2 9/16 1 3/16 ♀ No embryo found.
10 2 1/16 1 7/16 ♂
9 5/16 2 1/16 1 3/16 ♂
3 embryos found 1/2 developed
9 3/16 2 8/16 1 4/16 ♀ 2 embryo right side 1 embryo leftside.
9 3/16 2 5/16 1 5/16 ♀ No embryo found.
10 3/16 2 3/16 1 5/16 ♂
10 3 3/16 1 4/16 ♂
9 5/16 2 1/16 1 7/16 ♀ No embryo found.
Above gophers were caught scattered over a
40 acre field. It is interesting to note the
difference between these last two lists. 35% of the above females were pregnant while on the first list where the males were scarce 100% of the females were free from embryo. Yet the gophers were more con-
centrated than on the first list. These two fields were about 1/2 miles apart.