Morphology of the Ovotestis of Synaptula hydriformis (Holothuroidea, Apoda): An Evolutionary Model of Oogenesis and the Origin of Egg Polarity in Echinoderms

The viviparous holothuroid Synaptula hydriformis, a simultaneous hermaphrodite, broods its young in the coelom and releases young year round. Both eggs and sperms develop asynchronously in the two short gonadal tubules that are suspended in the coelomic cavity. Sperms are released into the tubule, b...

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Bibliographic Details
Published in:Invertebrate Biology, Vol. 115, No. 1 (1996), p. 46-66
Main Author: Frick, Jennifer E.
Other Involved Persons: Ruppert, Edward E. ; Wourms, John P.
Format: electronic Article
Item Description:Copyright: Copyright 1996 American Microscopical Society, Inc.
Physical Description:Online-Ressource
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