Margarites ecarinatus

Margarites ecarinatus is a species of sea snail, a marine gastropod mollusk in the family Margaritidae.[1][2]

Margarites ecarinatus
Original image of the shell of Margarites ecarinatus
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Vetigastropoda
Order: Trochida
Superfamily: Trochoidea
Family: Turbinidae
Genus: Margarites
Species:
M. ecarinatus
Binomial name
Margarites ecarinatus
Dall, 1919

Description

The height of the shell attains 8 mm. The pinkish grey shell is depressed. It has about five rapidly enlarging whorls. The glassy nucleus is minute. The subsequent whorls are moderately inflated. They are separated by a deep but not channelled suture, having a rounded periphery, a wide, completely pervious umbilicus, and a large, very oblique, iridescent aperture. The axial sculpture consists of very fine silky incremental lines. The spiral sculpture consists of low flattish threads separated by narrower interspaces sometimes carrying a finer intercalary thread. This sculpture is carried over the base but is absent from the walls of the wide umbilicus;. The rounded aperture is very oblique. Its margins are sharp, hardly meeting over the body except by a thin layer of enamel. The brown operculum is thin, and multispiral.[3]

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gollark: As bait to make people work out how to do it for you.
gollark: But then you would know about it.
gollark: Why would I disclose it in public chat?
gollark: It's too late, I already derived it.

References
  1. Rosenberg, G. (2012). Margarites ecarinatus Dall, 1919. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=528725 on 2012-09-01
  2. Turgeon, D.D., et al. 1998. Common and scientific names of aquatic invertebrates of the United States and Canada. American Fisheries Society Special Publication 26
  3. W;H. Dall Report of the Canadian Arctic Expedition (1913-1918) vol. VIII


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