Mitromorpha columnaria

Mitromorpha columnaria is a species of sea snail, a marine gastropod mollusk in the family Mitromorphidae.[1]

Mitromorpha columnaria
Original image of a shell of Mitromorpha columnaria
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Caenogastropoda
Clade: Hypsogastropoda
Clade: Neogastropoda
Superfamily: Conoidea
Family: Mitromorphidae
Genus: Mitromorpha
Species:
M. columnaria
Binomial name
Mitromorpha columnaria
(Hedley, 1922)
Synonyms[1]

Mitrithara columnaria Hedley, 1922

Description

The length of the shell attains 13 mm, its diameter 5 mm.

(Original description) The shell is rather large and thin, regularly fusiform. Its colour is a pale yellow-orange, with a zone of alternate brown and buff beneath the suture. It contains 8 whorls, of which three are included in the protoconch. The suture is impressed. Radials in the sculpture are entirely absent. Spirals amount to thirty two on the body whorl and to ten on the penultimate whorl. The summit of the whorl is crowned by a strong cord followed by a corresponding sulcus, thence the spirals diminish to the periphery, where they are small and crowded, with another change the base and aperture are occupied by eight broad and widely spaced spirals. The outer lip incomplete in the specimen examined. The columella has two low folds.[2]

Distribution

This species is endemic to Australia and occurs off Tasmania.

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References
  1. Mitromorpha columnaria (Hedley, 1922). Retrieved through: World Register of Marine Species on 29 March 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.
  • May, W.L. 1923. An illustrated index of Tasmanian shells: with 47 plates and 1052 species. Hobart : Government Printer 100 pp.
  • Tucker, J.K. (2004). "Catalog of recent and fossil turrids (Mollusca: Gastropoda)" (PDF). Zootaxa. 682: 1–1295.
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