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Taxon profile

subspecies

Pseudomalaxis zanclaeus meridionalis (Hedley, 1903)

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  order Allogastropoda »  family Architectonicidae - Sundials »  genus Pseudomalaxis »  species Pseudomalaxis zanclaeus

Scientific synonyms

Omalaxis meridionalis Hedley, 1903
Pseudomalaxis nobilis meridionalis (Hedley, 1903)
Discohelix meridionalis (Hedley, 1903)
Pseudomalaxis meridionalis (Hedley, 1903)
Mangonuia bollonsi (Mestayer, 1930)
Torinia bollonsi (Mestayer, 1930)
Pseudomalaxis solaris (Kuroda, 1938)

Images

Pseudomalaxis zanclaeus meridionalis

Author: Hedley

Taxon in country check-lists*

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Description

Shell small thin rotate, flat above, shallow concave beneath, sides perpendicular. Colour white. In its broken state there remain two whorls and the protoconch. Whorls almost square in section, with a keel projecting at the upper and lower corners. Sutures channelled. Sculpture : above, the upper outer keel stands up from the surface and is constituted by a double bead row ; latterly two smaller beads intervene between larger ones. A single narrow bead row runs along the inner margin close to the suture. On the base a single broad elevated bead row forms the outer keel and a narrower row runs along the inner margin. On the side are three evenly spaced raised threads. The space between the bead rows is transversely striated by growth lines. Protoconch tilted, but not sufficiently so to conceal the whorls either from above or from below. Major diam., 4,5 mm.; minor diam., 3,6 mm. ; height, 1,25 mm.
Hedley, 1903, Scientific results of the trawling expedition of H.M.C.S. "Thetis" off the coast of New South Wales, in February and March, 1898, Part 2: Mollusca. Part II. Scaphopoda and Gastropoda.
Author: Jan Delsing

Links and literature

EN Australian Faunal Directory [b8edc52e-c70b-46f9-9278-253469e9f674]

ABRS (2009-2019): Australian Faunal Directory [https://biodiversity.org.au/afd/home], Australian Biological Resources Study, Canberra [as Pseudomalaxis zanclaeus meridionalis (Hedley, 1903)]
Data retrieved on: 13 February 2015
EN Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [as Pseudomalaxis zanclaeus meridionalis (Hedley, 1903)]
Data retrieved on: 21 July 2015

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