Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Crotaphytus collaris #2
CLUTCH NO. 1 DATE 5/17/58
90 TEMP.(°F)
HUMIDITY(%)
LOCALITY 8 mi. S. of Barstow, San Bernardino Co., Cal.f.
EGG TURNING none
Egg No. Date Set Remarks
1 8/2/58 All eggs set in pits in damp soil.
2 "
3 "
4 "
Hatched Remarks
- Humidity dropped to 74% for 2 days (8/16 to 8/17)
- "This egg now somewhat shrivelled. Died 9/10/58 (see below)
- "Removed 7/9/58 - upon opening I was pleased that the embryo broke free and the air sac formed. There was completely collapsed 180° area of the shell.
- "9/10/5-8 Heat in Chamber rose to 160°F. The egg began to shrink partially covering itself completely. The anterior one third of the shell began turning coagulated at the skin near coming off the heat used to
11/27 momentarily. The body was wing at it white with the other returning somewhat after they were placed in formalin.