Trimusculus conicus

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Trimusculus conicus
Naturalis Biodiversity Center - RMNH.MOL.235867 - Trimusculus conicus (Angas, 1867) - Trimusculidae - Mollusc shell.jpeg
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Ellobiida
Family: Trimusculidae
Genus: Trimusculus
Species:
T. conicus
Binomial name
Trimusculus conicus
(Angas, 1867)
Synonyms

Gadinia conica Angas, 1867
Gadinalea conica
Amalthea hexagona Suter, 1906
Hipponix hexagonus(Suter, 1913)
Hipponix hexagonus Powell, 1924

Trimusculus conicus [1] is an air-breathing sea snail or false limpet, a pulmonate gastropod mollusc in the family Trimusculidae, the button snails.

This species is endemic to eastern and southern Australia, and New Zealand [2] including the Chatham Islands.

Shell description

The shell is ovate, conoidal, generally depressed, radiately ribbed, apex rather posterior. The sculpture consists of about 40 subequal narrowly rounded straight riblets, some of which do not extend to the summit. Concentric growth lines are mostly present, and very often produce prominent ridges. The shell colour is white, light-pinkish towards the margin; the interior is white, the margin light pink. The apex is subcentral to nearly marginal, small and distinctly uncinate in well-preserved specimens; anterior and side slopes convex, posterior slope straight, concave, or lightly convex. The interior is shiny with the adductor-scar and siphonal groove distinctly showing. The margin is very slightly crenulate. [3]

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References

This article incorporates public domain text from reference. [3]

  1. ↑ Bouchet, P. (2010). Trimusculus conicus (Angas, 1867). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=414594 on 2011-01-09
  2. ↑ Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN   0-00-216906-1
  3. 1 2 3 4 Suter H. 1913. Manual of the New Zealand Mollusca. Wellington.
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