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The Determination of Specific Characters for the Identification of Certain Ascidians

Published online by Cambridge University Press:  11 May 2009

Harold Thompson
Affiliation:
Fishery Board for Scotland, Aberdeen

Extract

In the course of a study involving the routine identification of Tunicata the need became apparent of an attempt being made to define more clearly than has been done the diagnostic characters of certain species. The examination of a widely-collected material demonstrates the fact that in certain species considerable variations in structure accompany changes of habitat (depth, latitude, temperature, type of substratum, etc.), while other species vary but slightly.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 1930

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References

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