Turbonilla abrupta

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Turbonilla abrupta
Turbonilla abrupta 001.png
Drawing of a shell of Turbonilla abrupta
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Panpulmonata
Superfamily:
Pyramidelloidea
Family:
Pyramidellidae
Subfamily:
Turbonillinae
Genus:
Turbonilla
Species:
T. abrupta
Binomial name
Turbonilla abrupta
Bush, 1899 [1]
Synonyms
  • Chemnitzia abrupta (Bush, 1899)
  • Turbonilla levis auct. non C. B. Adams, 1850
  • Turbonilla gracilis Clessin, 1900
  • Turbonilla nesiotes Pimenta, A.D. & R.S. Absalão, 1998

Turbonilla abrupta, common name the abrupt turbonilla, is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies. [2] [3]

Contents

Description

The rather stout shell is of moderate size, measuring 4 mm, and irregularly coiled. Its color is dead white. The small protoconch is transverse to the axis, with projecting whorls. The teleoconch contains nine flattened whorls. The first 3 or 4 of these enlarge quite abruptly, while below the increase is very gradual. The suture is deep and nearly straight. The transverse ribs number about 20. They are rounded, oblique, and nearly straight. They are separated by wider, deep, flat-bottomed spaces which terminate just above the suture in very square-cut ends. The base of the shell is well-rounded and smooth. The aperture is somewhat elongated, expanded below with rounded angles. The thin inner-lip is reflected. [1]

Distribution

This marine species occurs in the following locations: [2]

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References

  1. 1 2 K.J. Bush (1899), Descriptions of New Species of Turbonilla of the Western Atlantic Fauna, with Notes on Those Previously Known; Proceedings of the Academy of Natural Sciences of Philadelphia, Vol. 51, No. 1 (Jan. - Mar., 1899), pp. 168
  2. 1 2 WoRMS (2010). Turbonilla abrupta Bush, 1899. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=420477 on 2012-03-01
  3. ↑ Rosenberg, G., F. Moretzsohn, and E. F. García. 2009. Gastropoda (Mollusca) of the Gulf of Mexico, Pp. 579–699 in Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Biodiversity. Texas A&M Press, College Station, Texas.
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