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Updated: Feb 8, 2026

Testing Visual Sensitivity to the Speed and Direction of Motion in Lizards
Published on: December 14, 2006
A unique case of limb abnormalities of a lizard (Reptilia, Lacertidae): Growth and development
Igor V Doronin1, Marina A Doronina1, Yulia I Tsuryumova2
1Laboratory of Herpetology, Zoological Institute of the Russian Academy of Sciences, Saint Petersburg, Russia.
Abstract:
Limb abnormalities are one of the most common deformities of vertebrates. They can be caused by both external and internal reasons. Limb abnormalities of amniotes are a fairly rare phenomenon, and mass limb abnormalities have not been found in amniote populations. Isolated cases of skeletal abnormalities are described mainly externally, without detailing the structure of the skeleton. This article presents descriptions of three abnormal specimens of hybrids of subspecies of Lacerta agilis (L. a. boemica × L. a. exigua). Two of them have oligodactyly of the right fore-limb. The third specimen demonstrates a unique combination of oligodactyly of the right and polydactyly of the left forelimbs.
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