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Journal of Experimental Biology 31,376-385 (1954)
Published by Company of Biologists 1954

The Inorganic Composition of the Blood of Mytilus Edulis and Anodonta Cygnea

W. T. W. POTTS ¹

¹ Zoological Department, University of Cambridge

1. Analyses have been made of the inorganic constituents of the blood of Mytilus edulis and Anodonta cygnea.

2. Mytilus blood resembles sea water in total concentration and composition, but has greater concentrations of calcium, potassium and total carbon dioxide.

3. Anodonta blood has a very low total concentration of solutes, but the concentrations of calcium and carbon dioxide are of the same order of magnitude as the concentrations in Mytilus blood.

4. This is discussed with reference to solubility of calcium carbonate in ionic solutions, and it is concluded that the blood of both animals is saturated with respect to aragonite.

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