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XI.—The Condition of the Mantle Cavity in Two Pulmonate Snails living in Loch Lomond*
Published online by Cambridge University Press: 11 June 2012
Synopsis
A survey has been made of the condition of the mantle cavity in populations of Lymnœa (Radix) peregra (Müller) and Physa fontinalis (L.) living in a range of depths and habitats in Loch Lomond. In many populations, including some in relatively shallow water, the mantle cavity remains water-filled throughout life. Where the cavity contains a gas-bubble, micro-gas-analysis (using a modification of Krogh's methods) has revealed that in some cases the gas composition is such that the bubble could be used as a physical gill, while in others such use is unlikely. Other observations on respiratory behaviour of the two species are reported, and growth-changes are noted in the surfaces available for cutaneous respiration. The study is discussed in relation to previous work on the respiration and ecology of freshwater pulmonate snails.
- Type
- Research Article
- Information
- Proceedings of the Royal Society of Edinburgh, Section B: Biological Sciences , Volume 65 , Issue 2 , 1954 , pp. 143 - 165
- Copyright
- Copyright © Royal Society of Edinburgh 1954
Footnotes
This paper was assisted in publication by a grant from the Carnegie Trust for the Universities of Scotland.
References
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