Gibbula zonata

Gibbula zonata is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.[1]

Gibbula zonata
Drawing of a shell of Gibbula zonata
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Vetigastropoda
Order: Trochida
Superfamily: Trochoidea
Family: Trochidae
Genus: Gibbula
Species:
G. zonata
Binomial name
Gibbula zonata
(Woods, 1828)
Synonyms
  • Oxystele zonata Wood, Sowerby, 1892
  • Trochus cingulatus Muhlf, 1816
  • Trochus leaensis Watson
  • Trochus menkeanus Philippi
  • Trochus zonatus Woods, 1828

Description

The size of the shell varies between 6 mm and 10 mm. The rather solid shell is imperforate but excavated at the place of the umbilicus. It has a depressed-conical shape. It is whitish, with numerous spiral bauds and lines of purplish-brown. The surface is very lightly obliquely striate, closely, densely finely spirally striate, generally with three strong carinae, one at periphery, the others above. The about 5 whorls are convex, those of the upper surface bicarinate. The convex body whorl is carinate or subcarinate. The oblique aperture is rounded-quadrangular. It is nacreous inside with slight sulci at the positions of the external carina. The columella is a little straightened.[2]

Distribution

This species occurs in the Atlantic Ocean off Namibia and the western coast of South Africa; in the Indian Ocean off the Agulhas Bank.

gollark: ++delete `Text`
gollark: OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES OH BEES
gollark: `
gollark: yes.
gollark: The best\* text format is of course a linked list of scalars.

References

  • "Gibbula zonata". Gastropods.com. Retrieved 16 January 2019.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.