Homalopoma nocturnum

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Homalopoma nocturnum
Homalopoma nocturnum 001.jpg
Drawing of a shell of Homalopoma nocturnum
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Vetigastropoda
Order: Trochida
Superfamily: Trochoidea
Family: Colloniidae
Genus: Homalopoma
Species:
H. nocturnum
Binomial name
Homalopoma nocturnum
(Gould, 1861)
Synonyms
  • Collonia rubraDunker, 1882
  • Leptothyra rubra laevicostataPilsbry, 1901

Homalopoma nocturnum is a species of sea snail, a marine gastropod mollusc in the family Colloniidae. [1]

Contents

Description

The size of the shell varies between 4 mm and 7 mm. The small, solid shell has a globose shape. It has 4-4½ rotund whorls, marked with subgranulose transverse ribs. The suture is obvious. The rotund aperture is iridescent and pearly within. The lip is thickened. [2]

Distribution

This marine species occurs off Southern Japan.

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References

  1. ↑ Homalopoma nocturnum (Gould, 1861) . Retrieved through: World Register of Marine Species  on 23 February 2013.
  2. ↑ G.W. Tryon (1888), Manual of Conchology X; Academy of Natural Sciences, Philadelphia (described as Leptothyra rubra and identified as Collonia rubra)
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