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A case of atrial siphon duplication in Styela clava (Tunicata: Ascidiacea)

Published online by Cambridge University Press:  03 March 2009

A. Epelbaum ,
C.M. Pearce  and
T.W. Therriault
A. Epelbaum*
Affiliation:
Fisheries and Oceans Canada, Pacific Biological Station, 3190 Hammond Bay Road, Nanaimo, British Columbia, CanadaV9T 6N7
C.M. Pearce
Affiliation:
Fisheries and Oceans Canada, Pacific Biological Station, 3190 Hammond Bay Road, Nanaimo, British Columbia, CanadaV9T 6N7
T.W. Therriault
Affiliation:
Fisheries and Oceans Canada, Pacific Biological Station, 3190 Hammond Bay Road, Nanaimo, British Columbia, CanadaV9T 6N7
*
Correspondence should be addressed to: A. Epelbaum, Fisheries and Oceans Canada, Pacific Biological Station, 3190 Hammond Bay Road, Nanaimo British Columbia, CanadaV9T 6N7 email: Anna.Epelbaum@dfo-mpo.gc.ca
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Abstract

The clubbed tunicate, Styela clava, normally has two siphons: one oral (incurrent) and one atrial (excurrent). This note describes an abnormal specimen of S. clava with a duplicated atrial siphon collected in November 2007 from an oyster culture tray on Vancouver Island, British Columbia, Canada.

Keywords

Styela clavaabnormalityclubbed tunicatedevelopmentmorphology
Type
Research Article
Information
Marine Biodiversity Records , Volume 2 , January 2009 , e32
Copyright
Copyright © Marine Biological Association of the United Kingdom 2009

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References

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