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The occurrence at Plymouth of the opisthobranch Akera bullata, with notes on its habits and relationships

Published online by Cambridge University Press:  11 May 2009

J. E. Morton  and
N. A. Holme
J. E. Morton
Affiliation:
Department of Zoology, Queen Mary College, University of London
N. A. Holme
Affiliation:
The Plymouth Laboratory
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Extract

Akera bullata O. F. Müller is a tectibranch mollusc having a coiled external shell and a foot with lateral extensions used for swimming. At certain times of the year it swims actively, as was observed by Donovan, who writes that it ‘sports in its watery element with all the liveliness of a butterfly, and formed a pleasing object when kept alive in a glass of sea water’ (quoted by Montagu, 1803). Although sometimes abundant locally, it is not a mollusc often taken by the collector, even though it is a conspicuous object when swimming.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 34 , Issue 1 , February 1955 , pp. 101 - 112
Copyright
Copyright © Marine Biological Association of the United Kingdom 1955

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References

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