Xylodiscula planata sp. nov., a “lower” heterobranch gastropod from Norwegian waters
2001; Taylor & Francis; Volume: 86; Issue: 4-5 Linguagem: Inglês
10.1080/00364827.2001.10425522
ISSN1503-1128
AutoresTore Høisæter, Per Johannessen,
Tópico(s)Marine Bivalve and Aquaculture Studies
ResumoA small gastropod, closely related to a couple of species known from moderately deep water in the Mediterranean, is described as a new species based on nine specimens. The snails were found in four grab samples, one on a sandy-rocky bottom in outer Sognefjorden, two on silty-sandy bottom in outer Hardangertjorden, both from 34m, and finally one from 54 m depth outside Sotra, W of Bergen. This is the tirst record of a member of the heterobranch family Xylodisculidae from Norwegian waters. The specimens were all found in the immediate vicinity of salmon farms, and a preference by the species for the reducing environment of decaying, surplus fish feed is suggested.
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