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.

 ISSN 0268-0130

2021 Impact Factor from Clarivate for the Herpetological Journal is 1.194, an increase of 0.332 from 2020.

pdf 07. Eggshell structure of lizards of two sub families of the Gekkonidae


Open Access


Authors: D. C. Deeming

Abstract: The aim of this study was to describe and compare shell structure of parchment-shelled and rigid-shelled eggs of gekkonid lizards. Scanning electron microscopy was used to describe eggshells of two,species of gecko of the Eublepharinae and four species of Gekkoninae. Eggshell from a lacertid lizard was also described . The crystalline nature of calcium carbonate deposits on eggshells was studied; an aragonitic chelonian eggshell was used as a control. Eublepharine eggshells consist mainly of a fibrous membrane with an external layer of calcite. They resembled lacertid and other lizard shells described previously. Gekkonine eggshells have thin, fibrous shell membranes overlain by a relatively thick layer of calcite and resemble other hard-shelled gecko eggs reported elsewhere. A layer of fibres in a matrix coats the external surface of the calcite layer of gekkonine shells. Shell structure is considered important in determining water loss from gecko eggs, nest local ion and embryonic development. A more detailed examination of the reproductive biology of gekkonid eggs could help in assessing the role of the shell in reptilian development.

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Please note that as from Volume 31 Number 1 (January 2021) on, the Herpetological Journal will be available as an online publication only - the last print edition will be Volume 30 Number 4.   

Aligning with this change, it is now no longer possible to purchase a subscription that includes a print copy of the HJ.  All members who have existing HJ print subscriptions that remain active as at end June 2020 will receive the full four 2020 print editions.  New subscribers or renewals after this time will only have option to subscribe to the online only subscription package.  Subscription pricing has been amended to reflect the content changes.