Microtralia ovulum

Microtralia ovulum
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Heterobranchia clade Euthyneuraclade Panpulmonata clade Eupulmonata
Superfamily:	Ellobioidea
Family:	Ellobiidae
Genus:	Microtralia
Species:	M. ovulum
Binomial name
	Microtralia ovulum; (Pfeiffer, 1840)
Synonyms
	Actaeon ovulum(Pfeiffer, 1840); Auricula minuscula(Dall, 1889); Auriculastra nanaHaas, 1950; Leuconia occidentalisPfeiffer, 1854; Microtralia occidentalis(L. Pfeiffer, 1854) junior subjective synonym; Microtralia ovula [sic] (incorrect gender ending); Tornatella ovulum Pfeiffer, 1840; Tralia minuscula Dall, 1889;

Last updated April 03, 2024

Microtralia ovulum is a species of minute air-breathing land snail, a terrestrial gastropod mollusk in the family Ellobiidae, the salt marsh snails.

Shell description

The shell is minute, smooth, yellowish white, with about five whorls beside the minute, rounded, sinistral and with half-immersed nucleus. The spire is moderately elevated and pointed. The sculpture is of fine regular impressed lines, parallel with the incremental striae. The suture is distinct. The last whorl is with nearly parallel sides, rounded and slightly attenuated base. The columella is stout, strongly twisted, white, short. The outer lip is nearly straight, somewhat thickened, especially anteriorly, not lirate or denticulate internally. The shell is with two revolving ridges, the posterior one is fainter and placed in advance of the middle of the whorl. There is a slight wash of callus on the shell.^[1]

The aperture is about one-third as wide as the body whorl to the left of it, pointed behind, rounded and slightly oblique in front.^[1]

The height of the shell is 3.8 mm. The width of the shell is 2.0 mm. The height of the last whorl is 3.0 mm.^[1]

The maximum recorded shell length is 3.8 mm.^[2]

Distribution

This species occurs in the Caribbean Sea; also off The Bahamas.

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References

This article incorporates a public domain text from reference.^[1]

1 2 3 4 5 Dall W. H. in Simpson C. T. 1885-1889. Contributions to the Mollusca of Florida. Proceeding Davenport Academy of Natural Sciences, volume V., 45-72. page 69.
↑ Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". PLoS ONE 5(1): e8776. doi : 10.1371/journal.pone.0008776.

External links

http://www.malacolog.org/search.php?nameid=7733

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[Dall-1] 1 2 3 4 5 Dall W. H. in Simpson C. T. 1885-1889. Contributions to the Mollusca of Florida. Proceeding Davenport Academy of Natural Sciences, volume V., 45-72. page 69.

[Welch_2010-2] Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". PLoS ONE 5(1): e8776. doi : 10.1371/journal.pone.0008776.

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