Spectamen bellulus

Spectamen bellulus
Drawing with an apertural view of a shell of Spectamen bellulus
Scientific classification
Kingdom:Animalia
Phylum:Mollusca
Class:Gastropoda
Clade:Vetigastropoda
Superfamily:Trochoidea
Family:Solariellidae
Genus:Spectamen
Species: S. bellulus
Binomial name
Spectamen bellulus
(Angas, 1869)
Synonyms
  • Minolia bellula Angas, 1869 (original combination)
  • Solariella (Solariella) bellulum (Angas, 1869)
  • Trochus dianthus P. Fischer, 1879

Spectamen bellulus is a species of sea snail, a marine gastropod mollusk in the family Solariellidae.[1]

Description

The height of the shell attains 6 mm, its diameter 8.5 mm. The rather thin, shining shell is umbilicated and has a conoidal shape. The six whorls are convex, depressed-canaliculate above, and terraced. The first whorl is whitish, the remainder whitish, beautifully ornamented with regular, equidistant, radiating, somewhat flexuous radiating rosy streaks. The shell is spirally delicately striate. The body whorl is carinated. The white base is radiately striate, somewhat convex. The aperture is subquadrate, and smooth inside. The lip is thin. The narrow columella is scarcely arcuate, forming an angle with the basal margin . The umbilical area is funnel-shaped, white, carinated, the carina subnodulose.[2]

Distribution

This marine species is endemic to Australia and occurs off New South Wales

References

  1. ↑ Marshall, B. (2013). Spectamen bellulus (Angas, 1869). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=718907 on 2013-12-08
  2. ↑ Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia (described as Minolia bellula)
  • Angas, G.F. 1869. Descriptions of twelve new species of land and marine shells from Australia and the Solomon Islands. Proceedings of the Zoological Society of London 1869: 45-49
  • Fischer, P. 1879. Genres Calcar, Trochus, Xenophora, Tectarius et Risella. 337-463, 120 pls in Keiner, L.C. (ed.). Spécies general et iconographie des coquilles vivantes. Paris : J.B. Baillière Vol. 3
  • Iredale, T. 1929. Mollusca from the continental shelf of eastern Australia. No. 2. Records of the Australian Museum 17(4): 157-189, pls 38-41
  • Iredale, T. & McMichael, D.F. 1962. A reference list of the marine Mollusca of New South Wales. Memoirs of the Australian Museum 11: 1-109
  • D.G. Herbert (1987), Revision of the Solariellinae (Mollusca Prosobranchia: Trochidae) in Southern Africa; Volume 28 van Ann. Natal Museum
  • Wilson, B. 1993. Australian Marine Shells. Prosobranch Gastropods. Kallaroo, Western Australia : Odyssey Publishing Vol. 1 408 pp
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