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Alaba incerta

From Wikipedia, the free encyclopedia

Alaba incerta
Shell of Alaba incerta
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Family: Litiopidae
Genus: Alaba
Species:
A. incerta
Binomial name
Alaba incerta
(d’Orbigny, 1841)
Synonyms
  • Eulima incerta d'Orbigny, 1841 (original combination)
  • Rissoa melanura C. B. Adams, 1850
  • Rissoa tervaricosa C. B. Adams, 1845 (junior synonym)

Alaba incerta is a species of sea snail, a marine gastropod mollusk in the family Litiopidae.[1]

Description

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(Described as Rissoa melanura) The shell is conic and turrited. It is white and subtransparent with a black apex. It is nearly smooth and is shining. It features some spiral striae that are distinct anteriorly and on the lower part of the whorls of the spire, but obsolete on the upper part. The apex is acute, and the spire has nearly rectilinear outlines. There are eight quite convex whorls with a rather deep suture. The aperture is scarcely effuse, and the outer lip is thin and well-excurved below the middle. The columella is straight and subtruncate.[2]

Distribution

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This species occurs in the Caribbean Sea and off the Lesser Antilles.

Description

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The maximum recorded shell length is 10 mm.[3]

Habitat

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Minimum recorded depth is 0 m.[3] Maximum recorded depth is 40 m.[3]

References

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  1. ^ Alaba incerta (d’Orbigny, 1841). Retrieved through: World Register of Marine Species on 17 May 2010.
  2. ^ Adams, C.B. (1850). "Descriptions of supposed new species of marine shells, which inhabit Jamaica". Contributions to Conchology. 7: 109–123. Retrieved 10 July 2024. Public Domain This article incorporates text from this source, which is in the public domain.
  3. ^ a b c 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.
  • Hodgson, C. J.; Hilburn, D. J. (1991). "An annotated checklist of the Coccoidea of Bermuda". Florida Entomologist. 74 (1): 133–146. doi:10.2307/3495250. JSTOR 3495250.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  • 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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