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The alleged alternation of sexual phases in Kuhnia scombri, a monogenean of Scomber scombrus

Published online by Cambridge University Press:  06 April 2009

Janet E. Finlayson
Janet E. Finlayson
Affiliation:
Department of Zoology and Comparative Physiology, The University of Birmingham, P.O. Box 363, Birmingham B15 2TT
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Summary

In 1945 Sproston stated that an alternation of sexual phases takes place in Kuhnia scombri, a monogenean of Scomber scombrus, but an examination of egg-laying, the state of the sexual organs and the presence of sperms in this parasite at various times of the year have shown that there is no evidence for the existence of such a phenomenon. Sproston's observations are examined with particular reference to problems in measuring the length of the parasite and to the unreliability of using the presence or absence of eggs in the uterus as an index of femaleness.

Type
Research Article
Information
Parasitology , Volume 84 , Issue 2 , April 1982 , pp. 303 - 311
Copyright
Copyright © Cambridge University Press 1982

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