Bellastraea rutidoloma

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Bellastraea rutidoloma
Bellastraea rutidoloma 002.jpg
Apertural view of Bellastraea rutidoloma
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Vetigastropoda
Order: Trochida
Superfamily: Trochoidea
Family: Turbinidae
Genus: Bellastraea
Species:
B. rutidoloma
Binomial name
Bellastraea rutidoloma
(Tate, 1893) [1]
Synonyms
  • Astralium rutidolomaTate, 1893
  • Turbo (Astralium) rutidolomaTate, 1893 (original description)

Bellastraea rutidoloma, common name the granular small star, is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails. [2]

Contents

Description

(Original description by R. Tate) The shell has a lenticular-conoid shape, about equally sloping above and below from the angular periphery. The 4½ whorls are flat. The embryonic contains 1½ whorls fimbriated at the suture. The umbilicus is minute. The upper surface of the body whorl shows a stout and a broad lira next to the suture, which is transversely crenulate-ridged. The periphery is bluntly angled by a slightly compressed convex keel, which is obsoletely crenulated. Between the keel and the sutural band are three granulose lirae about equidistant and equal-sized but the anterior one is close to the keel (in older specimens a small lira is interposed next the suture, and there is a tendency in the granules of the lirae to become somewhat confluent). The intervals between the lirae are smooth. The base has four granulose lirae. The umbilical region is bounded by a broad ridge, which is broken up into claviform tubercles obliquely disposed. The colour is greenish-brown in living specimens, flesh-coloured with rufous lirae and darker tinted at the suture and keel in beach examples. The interior of the aperture of living examples is greenish and of a pearly lustre. [3]

Distribution

This marine species is endemic to Australia and occurs off South Australia.

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References

  1. ↑ Tate, R. 1893. Some additions to the list of the Marine Gastropoda of South Australia. Transactions of the Royal Society of South Australia 17(1): 189–202
  2. ↑ Bellastraea rutidoloma (Tate, 1893) . Retrieved through: World Register of Marine Species  on 9 September 2012.
  3. ↑ Transactions of the Royal Society of South Australia v.17 (1892–1893)


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