Vertigo ventricosa

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Vertigo ventricosa - Wikipedia

From Wikipedia, the free encyclopedia

Vertigo ventricosa

Drawing: the aperture of a shell of Vertigo gouldii
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Stylommatophora
Family:	Vertiginidae
Subfamily:	Vertigininae
Genus:	Vertigo
Species:	V. ventricosa
Binomial name
*Vertigo ventricosa* (E. S. Morse, 1865)
Synonyms
Isthmia ventricosa E. S. Morse, 1865 Vertigo (Alaea) ventricosa (E. S. Morse, 1865) alternate representation Vertigo elatior Sterki, 1894 Vertigo gouldii var. lagganensis Pilsbry, 1899 Vertigo gouldii var. loessensis F. C. Baker, 1928 Vertigo ventricosa var. elatior Sterki, 1894 (junior synonym)

Vertigo ventricosa, common name the five-tooth vertigo, is a species of minute air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Vertiginidae,^[1] the whorl snails.

Description

(Original description) Animal: The dorsal and cephalic portions of body, and tentacles are jet black. The disk is long, narrow, rounded at extremity. The anterior portion of the disk is dark slate, becoming lighter towards caudal extremity. The tentacles are short and very bulbous. The base of the tentacles approximating. The cephalic lobes are conspicuous.

The buccal plate is wide, narrow, not produced in centre, but slightly curving at ends. The cutting edge is regularly waved.

Lingual formula of the radula: 98,-13-1-13 . The central and lateral plates are notched at the outer posterior corners. The central plate is square, having three small denticles. The blate is indented at the base of the central denticle, which is the largest. The lateral plates are tridentate, the inner denticle largest. The uncine is minutely notched.

The shell is umbilicate, ovate conic, smooth and polished. The apex is obtuse . The suture is deep. The shell contains four convex whorls. The aperture is semi-circular, with five teeth, one prominent on the parietal margin; two smaller on the columellar margin, and two prominent within, contracting the aperture at the base. The peristome is widely reflected, the right margin flexuose, within thickened and colored.^[2]

Distribution

This species occurs in Northeast America.

References

^ "Vertigo ventricosa". WoRMS. World Register of Marine Species. Retrieved 10 August 2021.
^ Morse, E. S. (1865). Descriptions of new species of Pupadae. Annals of the Lyceum of Natural History of New York. 8: 207-212 This article incorporates text from this source, which is in the public domain.

Sterki, V. (1894). The land and fresh water Mollusca in the vicinity of New Philadelphia. A contribution to the natural history of Tuscarawas Co., Ohio. Beobachter Print, New Philadelphia, Ohio. 1–14.
InvertEBase. (2018). Authority files of U.S. and Canadian land and freshwater mollusks developed for the InvertEBase (InvertEBase.org) project.

External links

Wikimedia Commons has media related to Vertigo ventricosa.

Taxon identifiers
Vertigo ventricosa	Wikidata: Q3072925 EoL: 449864 GBIF: 2293981 iNaturalist: 233540 IRMNG: 10736740 ITIS: 76857 NatureServe: 2.1167476 NCBI: 681975 Open Tree of Life: 104385 WoRMS: 1352439

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