Hemiaclis carolinensis

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Hemiaclis carolinensis
Hemiaclis carolinensis 001.jpg
Shell of Hemiaclis carolinensis (holotype)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Littorinimorpha
Superfamily: Vanikoroidea
Family: Eulimidae
Genus: Hemiaclis
Species:
H. carolinensis
Binomial name
Hemiaclis carolinensis
Bartsch, 1911
Synonyms

Aclis carolinensis Bartsch, 1911

Hemiaclis carolinensis is a species of sea snail, a marine gastropod mollusk in the family Eulimidae. [1] [2]

Contents

Description

The length of the shell attains 4.7 mm, its diameter 1.3 mm.

(Orginal description) The shell is acicular. The two whorls in the protoconch are well rounded and smooth. The early post-nuclear whorls are gently rounded on the posterior two-thirds between the sutures and abruptly on the anterior one-third. The later are more evenly rounded. The shell is sculptured with numerous fine incremental lines and by feeble, somewhat irregular, raised, slender spiral threads. The combination of the incremental lines and the spiral threads lends the surface of the whorls a somewhat malleated appearance. In addition to the above sculpture, varical lines appear at irregular intervals. The sutures are strongly impressed. The periphery of the body whorl is obliquely angled. The base of the shell is moderately long, strongly but narrowly umbilicated, well-rounded and sculptured like the spire with spiral striation, incremental lines and about six obsolete raised spiral threads. The aperture is large, decidedly effuse anteriorly, the basal portion patulous. The posterior angle is obtuse. The outer lip is thin. The columella is strongly curved, expanded and revolute. [3]

Distribution

This species occurs in the following locations: [1]

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References

  1. 1 2 Bartsch, 1911. Warén A. (2011). Checklist of Eulimidae. pers. com. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=566064 on 2013-03-03.
  2. ↑ Abbott, R.T. (1974). American Seashells. 2nd ed. Van Nostrand Reinhold: New York, NY (USA). 663 pp. (look up in IMIS).
  3. ↑ Bartsch, P. (1911). New mollusks of the genus Aclis from the North Atlantic. Proceedings of the United States National Museum. 40 (1829): 435-438, pl. 59 PD-icon.svg This article incorporates text from this source, which is in the public domain .
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