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On the genus Holophryxus (Isopoda: Epicaridea), with description of the male and redescription of the female of Holophryxus acanthephyrae

Published online by Cambridge University Press:  11 May 2009

M. B. Jones  and
G. Smaldon
M. B. Jones
Affiliation:
Department of Biological Sciences, Plymouth Polytechnic, Drake Circus, Plymouth PL4 8AA
G. Smaldon
Affiliation:
Department of Natural History, Royal Scottish Museum, Chambers Street, Edinburgh EH1 1JF
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Introduction

Adults of the isopod genus Holophryxus (Dajidae) occur as ectoparasites on natant decapod crustaceans, but little is known of the ecology and life-history of most species. Species of Holophryxus are thought to have a typical dajid life cycle involving an intermediate host (copepod), a definitive host (prawn) and three larval stages (epicaridium, microniscus, cryptoniscus), and the one species for which details are available fits this pattern (Coyle & Mueller, 1981). The final host is infected by the cryptoniscus, a stage superficially resembling a cirolanid isopod, and the first cryptoniscus to settle loses its isopod-like appearance and develops through a juvenile stage into a rather inflated, highly modified female (Coyle & Mueller, 1981). Any subsequent settler becomes a male, retains the small cryptoniscus body form and lives within the marsupium of the female.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 66 , Issue 2 , May 1986 , pp. 303 - 314
Copyright
Copyright © Marine Biological Association of the United Kingdom 1986

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References

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