Reproduction in the Mojave rattlesnake, Crotalus scutulatus (Serpentes: Viperidae)

Stephen R. Goldberg, Philip C. Rosen

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


Reproductive tissue was examined from 145 museum specimens of Crotalus scutulatus from Arizona, New Mexico, Texas and Mexico. Males follow a seasonal testicular cycle with sperm produced June-September; regressed testes were present March-May and October. Recrudescence occurred March-July. Timing of this cycle is similar to that of several other North American rattlesnakes. Sperm was present in the vasa deferentia March-October suggesting C. scutulatus has potential for breeding throughout this period. Females appear to have a biennial reproductive cycle with yolk deposition completed over two activity seasons. Mean litter size for 35 C. scutulatus was 8.2 ± 2.36 SD, range 5-13 young. Yearly percentages of gravid females appear to be related to food abundance.

Original languageEnglish (US)
Pages (from-to)101-109
Number of pages9
JournalTexas Journal of Science
Issue number2
StatePublished - May 2000

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics


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