Abstract
THE most common respiratory pigment among the molluscs is haemocyanin, which is widely distributed among the gastropods, cephalopods and amphineurans. Most bivalves lack a respiratory pigment, but, if present, the pigment is haemoglobin, which can be found in muscle tissue, in haemocoelic erythrocytes or dissolved in the haemolymph1. In Anadara trapezia (Deshayes) (Mollusca, Bivalvia), an arcid clam, haemoglobin is present in haemocoelic erythrocytes.
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NICOL, P., O'GOWER, A. Haemoglobin Variation in Anadara trapezia. Nature 216, 684 (1967). https://doi.org/10.1038/216684a0
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DOI: https://doi.org/10.1038/216684a0
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