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Ovarian Cycle of Crotaphytus collaris (Reptilia, Lacertilia, Iguanidae) from Arkansas with Emphasis on Corpora Albicantia, Follicular Atresia, and Reproductive Potential
Stanley E. Trauth
Journal of Herpetology
Vol. 12, No. 4 (Oct. 30, 1978), pp. 461-470
Published by: Society for the Study of Amphibians and Reptiles
Stable URL: http://www.jstor.org/stable/1563350
Page Count: 10
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Macroscopic and histological analyses of the ovarian cycle of Crotaphytus collaris were conducted during 1971 and 1972. The reproductive season extends from April to late June; examination of ovarian histosections revealed two distinct sets of corpora lutea, indicating that two clutches of eggs are produced per season. The average clutch size was 6.4. Corpora lutea regress into permanent ovarian scars (corpora albicantia). Consequently, corpora albicantia may be used to estimate total reproductive potential for an animal. In addition, two types of atretic follicles were staged according to their degenerate morphology. The similarity and persistence of these ovarian structures (atretic follicles and corpora albicantia) may limit the value of macroscopic interpretations.
Journal of Herpetology © 1978 Society for the Study of Amphibians and Reptiles