Conticosta petilinus

Conticosta petilinus is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.[1]

Conticosta petilinus
Original image of a shell of Conticosta petilinus
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Caenogastropoda
Clade: Hypsogastropoda
Clade: Neogastropoda
Superfamily: Conoidea
Family: Pseudomelatomidae
Genus: Conticosta
Species:
C. petilinus
Binomial name
Conticosta petilinus
(Hedley, 1922)
Synonyms[1]
  • Inquisitor petilinus Hedley, 1922
  • Bela antarctica Strebel, 1908

Description

The length of the shell attains 12.5 mm, its diameter 4.6 mm.

(Original description) The thin shell is lanceolate and sub-turreted. Its surface is smooth and glossy. The colour is buff-yellow, with two zones of raw sienna, the one subsutural, the other peripheral. The shell contains 10 whorls, of which two constitute the protoconch. The ribs are prominently round-backed, arranged at ten to a whorl. They follow each other irregularly up the spire. On the upper whorls the spirals are evanescent, and are represented by two or three beads on the ribs. On the body whorl there are about fifteen slight wide-spaced threads. The fasciole is indistinct. The aperture has a semi-circular sinus .The outer lip is simple and slightly bent inwards The siphonal canal is short, and slightly recurved.[2]

Distribution

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

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References
  1. Conticosta petilinus (Hedley, 1922). Retrieved through: World Register of Marine Species on 4 April 2010.
  2. Hedley, C. 1922. A revision of the Australian Turridae. Records of the Australian Museum 13(6): 213–359, pls 42–56 This article incorporates text from this source, which is in the public domain.
  • Powell, A.W.B. 1966. The molluscan families Speightiidae and Turridae, an evaluation of the valid taxa, both Recent and fossil, with list of characteristic species. Bulletin of the Auckland Institute and Museum. Auckland, New Zealand 5: 1–184, pls 1–23
  • Tucker, J.K. (2004). "Catalog of recent and fossil turrids (Mollusca: Gastropoda)" (PDF). Zootaxa. 682: 1–1295.
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