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XXX.—Study of an Introduced North American Freshwater Mollusc, Stagnicola catascopium (Say)

Published online by Cambridge University Press:  11 June 2012

D. Keith McE. Kevan
D. Keith McE. Kevan
Affiliation:
Zoology Department, University of Edinburgh.
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Extract

In July and August 1929 the writer's father, Mr D. K. Kevan, found large numbers of a species of Lymnœa, cleaned out of a warm engine-pond in a timber yard in Leith. These snails showed much variation in the form of the shell, and this made identification difficult.

In July and August 1940 the writer revisited the locality, collected a considerable number of living snails from the pond in question, and eventually established that they belonged to the common North American species, Lymnœa (Stagnicola) catascopium, Say.

Type
Research Article
Information
Proceedings of the Royal Society of Edinburgh, Section B: Biological Sciences , Volume 61 , Issue 4 , 1943 , pp. 430 - 461
Copyright
Copyright © Royal Society of Edinburgh 1943

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References

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