Alvania eucraspeda

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Alvania eucraspeda
Alvania eucraspeda 001.jpg
Shell of Alvania eucraspeda (holotype)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Littorinimorpha
Superfamily: Rissooidea
Family: Rissoidae
Genus: Alvania
Species:
A. eucraspeda
Binomial name
Alvania eucraspeda
(Hedley, 1911)
Synonyms

Rissoa hulliana var. eucraspedaHedley, 1911 (superseded combination)

Contents

Alvania eucraspeda is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae. [1]

The Australian Faunal Directory considers Rissoa hulliana var. eucraspeda a synonym of Alvania (Alvania) fasciata(Tenison-Woods, 1876) [2]

Description

The length of the shell attains 2 mm, its diameter 1.5 mm.

(Original description) This deep-sea variety differs from the typical shore form by being pure white, slightly larger and comparatively broader, and by having fewer and more prominent radials. Thus it acquires a lip broader and more scalloped, approaching a varix. [3]

Distribution

The holotype of this species was found off Cape Wiles, South Australia.

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References


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