MolluscaBase taxon details

Alvania seinensis Gofas, 2007

345732  (urn:lsid:marinespecies.org:taxname:345732)

accepted
Species
marine
Gofas S. (2007). Rissoidae (Mollusca: Gastropoda) from northeast Atlantic seamounts. <i>Journal of Natural History 41(13–16)</i>: 779–885
page(s): 794-796 [details]   
Note Seine seamount (33º45'N, 14º211W, 165 m).  
From editor or global species database
Type locality Seine seamount (33º45'N, 14º211W, 165 m). [details]
Distribution Seine seamount, endemic, common in 165-190 m.  
Distribution Seine seamount, endemic, common in 165-190 m. [details]
MolluscaBase (2018). Alvania seinensis Gofas, 2007. Accessed at: http://www.molluscabase.org/aphia.php?p=taxdetails&id=345732 on 2019-07-17
Date
action
by
2008-06-09 17:53:08Z
created

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original description Gofas S. (2007). Rissoidae (Mollusca: Gastropoda) from northeast Atlantic seamounts. <i>Journal of Natural History 41(13–16)</i>: 779–885
page(s): 794-796 [details]   
From editor or global species database
Biology Type of larval development: direct (non planktotrophic) denoted by paucispiral protoconch.  [details]

Diagnosis Shell up to 1.6 mm high, with a protoconch of 1.25 whorls and teleoconch of 2.5 to 3.0 whorl; surface of protoconch covered by minute granules arranged in blurry spiral bands, not appreciable under the optical microscope. Teleoconch sculpture with axial ribs (40-47 on the penultimate whorl), minute spiral threads and very faint spiral cords more developed on the abapical area. Outer lip of aperture with a thin edge, thickened externally at a distance of the edge by a broad rim, smooth inside. Shell colour white.
This species from the summit of Seine seamount differs consistently from Alvania microstriata Hoenselaar & Goud, 1998 collected more deeply in 320-455 m, having much finer and more numerous ribs, a more distinct subsutural furrow and an outer lip which is thickened externally at a distance of the edge. [details]

Distribution Seine seamount, endemic, common in 165-190 m. [details]

Type locality Seine seamount (33º45'N, 14º211W, 165 m). [details]