Abstract
THE mode of life and relationships of the Pyramidellidæ have remained more obscure than those of any other group of the gastropods, though such aberrations as the presence of a radula, the hermaphrodite gonad and their suspected parasitic habit have aroused comment1,2. Pelseneer1 described the feeding of Brachystomia rissoides (Hanley) = Odostomia scalaris Macg. which is parasitic on Mytilus : several individuals congregate on the edge of the shell of the mussel and each protrudes a long proboscis which is fixed to the inner surface of the mantle. No further details are given.
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References
Pelseneer, Bull. Sci. France Belgique, 48, 1 ( 1914).
Ankel, "Die Tierwelt der Nord- und Ostsee", IXb (Akademische Verlagsgesellschaft, Leipzig, 1936).
Thorson, Medd. Komm. Havundersøg., Kbh., Plankton, 4 ( 1946).
Fretter, J. Mar. Biol. Assoc., 27, 597 ( 1948).
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FRETTER, V., GRAHAM, A. Feeding and Reproduction in the Pyramidellids. Nature 163, 361–362 (1949). https://doi.org/10.1038/163361b0
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DOI: https://doi.org/10.1038/163361b0
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