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Morphological diversity and evolution of egg and clutch structure in amphibians

Herpetological Monographs

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Abstract

The first part of this synthesis summarizes the morphology of the jelly layers surrounding an amphibian ovum. We propose a standard terminology and discuss the evolution of jelly layers, The second part reviews the morphological diversity and arrangement of deposited eggs - the oppositional mode; we recognize 5 morphological classes including 14 modes. We discuss some of the oviductal, ovipositional, and postovipositional events that contribute to these morphologies. We have incorporated data from taxa from throughout the world but recognize that other types will be discovered that may modify understanding of these modes. Finally, we discuss the evolutionary context of the diversity of clutch structure and present a first estimate of its evolution. ?? 2007 by The Herpetologists' League, Inc.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Morphological diversity and evolution of egg and clutch structure in amphibians
Series title:
Herpetological Monographs
Issue:
21
Year Published:
2007
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Herpetological Monographs
First page:
1
Last page:
32
Number of Pages:
32