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Taxon profile

species

Odostomia bernardi (van Aartsen, Gittenberger & Goud, 1998)

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  order Allogastropoda »  family Pyramidellidae »  genus Odostomia

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Odostomia bernardi

Author: Aartsen, van, Gittenberger & Goud

Odostomia bernardi

Author: Aartsen, van, Gittenberger & Goud

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Description

Shell egg-shaped. Colour whitish in dead material. Embryonic whorls of type C. Teleoconch consisting of two and a half to three slightly convex whorls, the last one relatively very large. Suture well-marked, moderately incised. Growthlines orthocline to very slightly prosocline. Except for the well-marked growthlines there is no clear sculpture. Outer lip rather straight adapically, basally more strongly curved. Umbilicus lacking. There is a clear tooth, situated deeply inside the aperture.
Dimensions: H. 1.4-1.6 mm, W. 0.7-0.8 mm; holotype: 1.4 x 0.7 mm.
Aartsen, J.J. , Gittenberger, E. & Goud, J., 1998. Pyramidellidae (Mollusca, Gastropoda, Heterobranchia) collected during the Dutch CANCAP and MAURITANIA expeditions in the south-eastern part of the North Atlantic Ocean (part 1)

Interchangeable taxa

This relatively common species is similar to the European Odostomia glabrata Forbes & Hanley, 1850, as figured by van Aartsen (1987: 30, fig. 26). The latter species, however, has more slender shells, which are not egg-shaped and provided with clearly prosocline growthlines. The embryonic whorls of O. glabrata are also of type C, but much larger.
Depth range.— 0-300 m.
Aartsen, J.J. , Gittenberger, E. & Goud, J., 1998. Pyramidellidae (Mollusca, Gastropoda, Heterobranchia) collected during the Dutch CANCAP and MAURITANIA expeditions in the south-eastern part of the North Atlantic Ocean (part 1)
Author: Jan Delsing

Similar species

Odostomia glabrata Forbes & Hanley, 1850

Links and literature

EN Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [as Odostomia bernardi (Aartsen, Gittenberger & Goud, 1998)]
Data retrieved on: 23 November 2013

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