Bellastraea aurea

Bellastraea aurea
Apertural view of a shell of Bellastraea aurea
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Vetigastropoda
Superfamily: Trochoidea
Family: Turbinidae
Genus: Bellastraea
Species: B. aurea
Binomial name
Bellastraea aurea
(Jonas, 1844)
Synonyms
  • Astralium aureum (Jonas, 1844)
  • Carinidae granulata Swainson, 1855
  • Carinidae ornata Tenison-Woods, 1876
  • Carinidae tasmanica Tenison-Woods, 1877
  • Micrastraea aurea Iredale, T. & McMichael, D.F. 1962
  • Trochus aurea Jonas, 1844 (original combination)
  • Trochus aureus Jonas, 1844

Bellastraea aurea, common name the golden small star, is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails.[1]

Description

The height of the shell varies between 10 mm and 14 mm, its diameter between 12 mm and 19 mm. The small, solid, imperforate shell has a depressed-conic shape. Its color pattern is golden yellow or olive. The spire is low-conic and contains five whorls. These are scarcely convex above, and plicate at the sutures. tTe folds become fainter and frequently, bifurcating toward the periphery. The whorls are spirally lirate, the lirae below rather coarse, beaded, above finer, cutting the folds more or less into granules. The body whorl generally descends toward the aperture, and is compressed toward the periphery, which is subangular except in large specimens . The oblique aperture is rather smal and is pearly white. The columellar callus is dilated over the umbilical region, and excavated there, and with an indistinct denticle near its base. [2]

Distribution

This marine species is endemic to Australia and occurs in the shallow subtidal zone off South Australia, Tasmania, Victoria and Western Australia.

References

External links

Wikimedia Commons has media related to Bellastraea aurea.
This article is issued from Wikipedia - version of the 8/12/2014. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.