Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
E.L. Kardatum
1954
Bufo boreas (11)
April 17 Eggs in long double strands over a space about .5 x .7 meters, both jelly masses and black herde on the same string. Sample taken.
In farthest SW pond (3rd of E-W series beginning just south of pond A) 3 Bufo ampheliny, 20+ large F laying eggs. Water 24.1°. Thylen egg masses in water.
In first of 5 ponds one very recently torn open Bufo. In second, another, but just skin left. Otter skins in 3rd pond. Joe suggests predation - possibly owls. Skins were fresh. Raccoon?
April 19 I looked at egg string Joe had collected. No evidence of cleavage and fully 3/3 rds of eggs showed signs of decomposition. These probably not fertilized. Better sample needed for drawing and study.