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Taxon profile

species

Epitonium sawinae (Dall, 1903)

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  family Epitoniidae - Wentletraps »  genus Epitonium

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Epitonium sawinae

Author: Dall, W.H.

Epitonium sawinae

Author: McLean J.H. & Gosliner T.M.

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Description

Description. Shell white, medium to large, up to 10 whorls; costae 14-21 per whorl, strong, with pronounced shoulder spine, producing tabulate profile, costae often broad and fused with those behind. Length 15-24 mm.
Type Locality and Type Specimens. Santa Catalina Island, California, 16 fathoms. Lectotype (here designated): USNM 109309. Epitonium acrostephanus: Newport, Orange County, California; lectotype (here designated): USNM 110638. Epitonium catalinae: Santa Catalina Island, California, 16 fathoms; holotype USNM 198628. Epitonium tabulatum: Islas Coronados, Baja California, 16 fathoms; holotype: USNM 109569. Epitonium regum: Point Reyes, Marin County, California, 61 fathoms; holotype: USNM 206576. Material Examined. California: Santa Maria Basin, Phase I, sta. 42,100 m (1); Phase II, sta. R-l, 91 m (3); sta. R-4, 92 m (1); sta. R-8,90 m (1). Other material: 340 lots in the LACM collection.
Distribution. British Columbia (54°N), to Bahia Magdalena, Baja California Sur (24°N) (DuShane, 1979:116).
Habitat. 18-360 m on soft bottoms (DuShane, 1979:116).
Remarks. This species is characterized by its deep suture and tabulate aspect produced by the spinose costae that are often folded back. The suture is deeper than that of E. berryi.
Changes are made here to the synonymy of this species given by DuShane (1979:115): Epitonium catalinae Dall, 1908, is added to the synonymy, and E. berryi and E. rectilaminatum, both Dall, 1907, are removed.
McLean J.H. & Gosliner T.M. (1996) Taxonomic atlas of the benthic fauna of the Santa Maria Basin and Western Santa Barbara Channel. Vol. 9, Pt. 2: The Mollusca: The Gastropoda.
Author: Jan Delsing

Links and literature

EN Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [as Epitonium sawinae Dall, 1903]
Data retrieved on: 23 November 2013

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