Alvania crystallina

Alvania crystallina
	Drawing of a shell of Alvania crystallina
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Littorinimorpha
Superfamily:	Rissooidea
Family:	Rissoidae
Genus:	Alvania
Species:	A. crystallina
Binomial name
	Alvania crystallina; (Garrett, 1873)
Synonyms
	Rissoa crystallina Garrett, 1873 ·

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

Description

The length of the shell attains 2 mm.

(Original description) The small, white, ovate shell is thin, sub-pellucid, vitreous and shining. The spire is conical and obtuse. It contains 5 convex whorls, rounded and longitudinally ribbed. The body whorl is very large. The ribs are small and slightly oblique. They are evanescent on the lower part of the body whorl. The whole surface is covered with smaller, spiral ridges. The suture is deeply impressed. The aperture is subcircular. It is vertical and slightly angulate above. It is a little more than the third the length of the shell. The peristome is thickened. The arched columella is callous. ^[2]

Distribution

This species occurs in the Pacific Ocean off Hawaii

References

^ MolluscaBase eds. (2024). MolluscaBase. Alvania crystallina (Garrett, 1873). Accessed through: World Register of Marine Species at: https:
^ Garrett, A. (1873). Descriptions of new species of marine shells inhabiting the South Sea islands. Proceedings of the Academy of Natural Sciences of Philadelphia. 25: 209-231, plates 2-3 This article incorporates text from this source, which is in the public domain.

External links

G.W. Tryon (1884), Manual of conchology, structural and systematic : with illustrations of the species; Academy of Natural Sciences ser. 1, vol. 9 This article incorporates text from this source, which is in the public domain.

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[WoRMS-1] MolluscaBase eds. (2024). MolluscaBase. Alvania crystallina (Garrett, 1873). Accessed through: World Register of Marine Species at: https:

[2] Garrett, A. (1873). Descriptions of new species of marine shells inhabiting the South Sea islands. Proceedings of the Academy of Natural Sciences of Philadelphia. 25: 209-231, plates 2-3 This article incorporates text from this source, which is in the public domain.

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