Marstonia lustrica

Marstonia lustrica
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Littorinimorpha
Family:	Hydrobiidae
Genus:	Marstonia
Species:	M. lustrica
Binomial name
	Marstonia lustrica; (Pilsbry, 1890)
Synonyms
	Amnicola greenensis F. C. Baker, 1928; Amnicola lustrica Pilsbry, 1890 superseded combination; Amnicola lustrica var. decepta F. C. Baker, 1928; Amnicola lustrica var. gelida F. C. Baker, 1921; Amnicola lustrica var. perlustrica F. C. Baker, 1928; Amnicola oneida Pilsbry, 1917 (junior synonym); † Amnicola winkleyi var. leightoni F. C. Baker, 1920 junior subjective synonym; Marstonia decepta (F. C. Baker, 1928) junior subjective synonym;

Marstonia lustrica is a species of very small freshwater snail which has an operculum, an aquatic prosobranch gastropod mollusc in the family Hydrobiidae. ^[1]

Description

The length of the shell attains 4 mm, its diameter 2 mm.

(Original description as Amnicola oneida) The shell is typically more slender than Marstonia lustrica. It is turrito-conic, narrowly umbilicate, and corneous with minute striations. The shell contains six whorls. The apex is slightly obtuse, but the first whorl projects noticeably, similar to Marstonia lustrica. The whorls are highly convex, separated by a deep suture. The aperture is ovate and small, with its length exceeding three times the shell's length. The upper extremity of the aperture is narrowly rounded. The peristome is continuous, thin, and contacts the preceding whorl very briefly above. ^[2]

Distribution

This species occurs at the Oneida Lake, New York, USA.

References

^ Marstonia lustrica (Pilsbry, 1890). 23 January 2025. Retrieved through: World Register of Marine Species.
^ Pilsbry, H.A. (1917). "Amnicolidae from Oneida Lake, N.Y." The Nautilus. 31 (2): 45–46. Retrieved 23 January 2025. This article incorporates text from this source, which is in the public domain.

External links

ANSP Malacology Collection: image

[WoRMS-1] Marstonia lustrica (Pilsbry, 1890). 23 January 2025. Retrieved through: World Register of Marine Species.

[2] Pilsbry, H.A. (1917). "Amnicolidae from Oneida Lake, N.Y." The Nautilus. 31 (2): 45–46. Retrieved 23 January 2025. This article incorporates text from this source, which is in the public domain.

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