The British Herpetological Society

The Herpetological Journal is the Society's prestigious quarterly scientific journal. Articles are listed in Biological Abstracts, Current Awareness in Biological Sciences,Current Contents, Science Citation Index, and Zoological Record.

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pdf 03. Reproductive activity and sexual dimorphism of Liolaemus multimaculatus (Sauria Tropiduridae)

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Open Access

pp.49-53

Authors: Laura E. Vega

Abstract: The lizard Liolaemus multimaculatus inhabits coastal sand dunes of the Buenos Aires Province of Argentina, and exhibits reproductive activity during the spring and early summer months. Females had vitellogenic follicles and oviductal eggs between September and December, and the size at maturity was 48.2 mm (snout-vent length). Five females with yolked follicles as well as eggs were collected in November, indicating that at least some females can produce more than one clutch per reproductive period. Mean clutch size was 4.2 eggs (range 3 to 7) and clutch size was positively correlated with female body size. In males, testicular diameter pe ked in August (late winter) and September (early summer) and declined in January (mid-summer). Testis size increased gradually from January onwards. Individual males were seen more frequently during the reproductive period than females. Hatchlings were first seen in February and March and the smallest measured 26. 7 mm (snout-vent length). Liolaemus multimaculatus males were larger than females in several morphological traits: snout-vent length, head length, distance between fore and hind limbs, tibio-fibulla, hand and foot lengths.

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