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Ultrastructure of the Secondary Egg Envelope of Cyprinodontidae of the Genus Epiplatys Gill, 1862 (Pisces, Teleostei)
Author(s) -
Thiaw Omar Thiom,
Mattei Xavier
Publication year - 1996
Publication title -
acta zoologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.414
H-Index - 37
eISSN - 1463-6395
pISSN - 0001-7272
DOI - 10.1111/j.1463-6395.1996.tb01260.x
Subject(s) - biology , ultrastructure , teleostei , genus , envelope (radar) , zoology , anatomy , transmission electron microscopy , scanning electron microscope , physics , optics , fishery , fish <actinopterygii> , telecommunications , radar , computer science
The structure of the secondary egg envelope of seven species of Cyprinodontidae belonging to the genus Epiplatys was observed by transmission and scanning electron microscopy. The transverse structure of the secondary envelope examined by transmission electron microscopy is a constant feature in all the species studied and represents a good criterion for identification. In contrast, the surface structure of the secondary envelope when observed by scanning electron microscopy exhibits a great diversity of form. It is possible to distinguish each of the seven different species by the pattern of ornamentation, the width of the polygons and the size of the granules comprising them on the secondary egg envelope.