Pomaulax japonicus

Pomaulax japonicus
Shell of Pomaulax japonicus (Dunker, 1844), measuring 47.7 mm in height by 74.8 mm diameter, collected with tangle nets at 20 m depth off Pt. Daio, Shima-cho, in Japan.
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Vetigastropoda
Superfamily: Trochoidea
Family: Turbinidae
Genus: Pomaulax
Species: P. japonicus
Binomial name
Pomaulax japonicus
(Dunker, 1844)
Synonyms[1]
  • Astralium (Pomaulax) japonicum (Dunker, 1844)
  • Trochus japonicus (Dunker, 1845)

Pomaulax japonicus, the Japanese star shell, is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails.[1]

Description

The size of the shell attains 90 mm. The large, imperforate shell has a depressed-conic shape. It is pale yellowish. The six whorls are planulate above, and obliquely tuberculate-plicate. The periphery is expanded, compressed, carinated, bearing wide nodose spines. The base of the shell is planulate, with concentric tuberculate lirae. The white umbilical tract is , callous and depressed. The aperture is transversely dilated, subrhomboidal, and angulate. [2]

Distribution

This marine species occurs off Japan and Korea.

References

This article is issued from Wikipedia - version of the 9/3/2014. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.