Prothalotia lesueuri

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Prothalotia lesueuri
Prothalotia lesueuri 001.jpg
Drawing with two views of a shell of Prothalotia lesueuri
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Vetigastropoda
Order: Trochida
Superfamily: Trochoidea
Family: Trochidae
Genus: Prothalotia
Species:
P. lesueuri
Binomial name
Prothalotia lesueuri
(P. Fischer, 1880) [1]
Synonyms
  • Cantharidus lesueuri(Fischer, 1880)
  • Thalotia pictaAngas, 1865
  • Trochus lesueuriFischer, 1880

Prothalotia lesueuri, common name Lesueur's top shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. [2] [3]

Contents

Description

The height of the shell varies between 13 mm and 19 mm, its diameter between 10 mm and 11 mm. The somewhat solid, imperforate shell has an elongated conical shape. It is whitish or a little tinged with olive, painted with numerous rather narrow longitudinal olive-brown or reddish-brown stripes generally broken into tessellations on the base. The spire is long. The whitish apex is subacute. The sutures are moderately impressed. The about 7 whorls are flat or concave below the sutures, convex and swollen at the periphery and above each suture. They are encircled by numerous fine lirae. The body whorl is a trifle deflexed at the aperture and is often subangular at the periphery. The rhomboidal aperture measures less than half the total length of shell. The acute peristome is rather thin, and edged by a row of red dots, thickened a little distance within, the thickening finely crenulated. The vertical columella is marked with crimson at the outer base. [4]

Description

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

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References

  1. ↑ Fischer, P. 1877. Genres Calcar, Trochus, Xenophora, Tectarius et Risella. pp. 115-240 in Keiner, L.C. (ed.). Spécies general et iconographie des coquilles vivantes. Paris : J.B. Baillière Vol. 11
  2. ↑ Bouchet, P. (2012). Prothalotia lesueuri (P. Fischer, 1880). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=573219 on 2012-11-23
  3. ↑ Hickman C.S. (2005) Seagrass fauna of the temperate southern coast of Australia I: The cantharidine trochid gastropods. In: F.E. Wells, D.I. Walker & G.A. Kendrick (eds), The marine flora and fauna of Esperance, Western Australia: 199-220. Western Australian Museum, Perth.
  4. ↑ Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia (described as Cantharidus lesueuri)
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