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Image of Alvania seinensis Gofas 2007
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Alvania seinensis Gofas 2007

Biology

provided by World Register of Marine Species
Type of larval development: direct (non planktotrophic) denoted by paucispiral protoconch.
license
cc-by-4.0
copyright
WoRMS Editorial Board
bibliographic citation
Check List of European Marine Mollusca (CLEMAM).
contributor
Gofas, Serge [email]

Diagnosis

provided by World Register of Marine Species
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.
license
cc-by-4.0
copyright
WoRMS Editorial Board
bibliographic citation
Check List of European Marine Mollusca (CLEMAM).
contributor
Gofas, Serge [email]

Distribution

provided by World Register of Marine Species
Seine seamount, endemic, common in 165-190 m.
license
cc-by-4.0
copyright
WoRMS Editorial Board
bibliographic citation
Check List of European Marine Mollusca (CLEMAM).
contributor
Gofas, Serge [email]