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Publisher Description

Abstract. -- Reproductive tissue was examined from 109 sexually mature Hypsiglena torquata museum specimens from Arizona. Males follow a seasonal testicular cycle with sperm produced April to September. The prolonged period of sperm production suggests a similarity to testicular cycles of some tropical snakes. Sperm was present in the vasa deferentia from April to September indicating H. torquata has the potential for breeding throughout this period. Male H. torquata reach sexual maturity at a smaller size than females. Females with enlarged follicles ( 12 mm length) or oviductal eggs were found April to August. There was no evidence that more than one clutch of eggs is produced during the same breeding season. Mean clutch size for nine females was 3.2 [+ or -] 1.5 SD, range = 2-6. **********

GENRE
Professional & Technical
RELEASED
2001
May 1
LANGUAGE
EN
English
LENGTH
11
Pages
PUBLISHER
Texas Academy of Science
SIZE
180.2
KB

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