Pseudorhaphitoma informis

Pseudorhaphitoma informis is a small sea snail, a marine gastropod mollusk in the family Mangeliidae.[1]

Pseudorhaphitoma informis
Original image of a shell of Pseudorhaphitoma informis
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Caenogastropoda
Clade: Hypsogastropoda
Clade: Neogastropoda
Superfamily: Conoidea
Family: Mangeliidae
Genus: Pseudorhaphitoma
Species:
P. informis
Binomial name
Pseudorhaphitoma informis
Hedley, 1922

Description

The length of the shell attains 5 mm, its diameter 2 mm.

(Original description) The small, rather solid shell has an ovate-elongate shape and is broader and shorter than usual. Its colour is a uniform pale buff externally, stained with orange inside the aperture. The shell contains 6 whorls.

Sculpture:—The ribs are six to a whorl, continuous, rather low, round-backed, and perpendicular. The spirals are fine, even, and close threads, which become coarser and more widely spaced on the aperture.

The aperture is rather wide. The varix is of the same calibre as the ribs. The sinus is small and shallow. Within the outer lip are four small denticules, the uppermost largest. The siphonal canal is short, broad, and re-curved.[2]

Distribution

This marine genus occurs in the Gulf of Carpentaria and off Queensland and New South Wales, Australia

References
  1. WoRMS (2009). Pseudorhaphitoma informis Hedley, 1922. In: MolluscaBase (2017). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=434787 on 2018-01-01
  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.
  • Laseron, C. 1954. Revision of the New South Wales Turridae (Mollusca). Australian Zoological Handbook. Sydney : Royal Zoological Society of New South Wales pp. 56, pls 1–12.
  • Tucker, J.K. (2004). "Catalog of recent and fossil turrids (Mollusca: Gastropoda)" (PDF). Zootaxa. 682: 1–1295.
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