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Quarterly Journal of Microscopical Science, Vol s2-80, 321-329, Copyright © 1938 by Company of Biologists

Memoirs: On the Ciliary Mechanisms and Interrelationships of Lamellibranchs

Part V: Note on the Gills of Amussium pleuronectes

DAPHNE ATKINS B.Sc.1

1 Marine Biological Laboratory, Plymouth

The gills of Amussium pleuronectes L., a species from shallow water, were examined and the lamellae found to be plicate and heterorhabdic, thus differing in structure from those of the deep-water species, Amussium dalli, Amussium meridionale, and Amussium lucidum, which Ridewood found to have flat and homorhabdic lamellae. The gills of Amussium pleuronectes closely agree with those of the Pectinidae also possessing plicate and heterorhabdic lamellae.

Ridewood's classification of the Amussiidae with the Mytilacea cannot be upheld; the position of this family is with the Pectinacea as in Pelseneer's classifications of 1888, 1906, and 1911.






© The Company of Biologists Ltd 1938