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Sinezona rimuloides
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Vetigastropoda
Order:	Lepetellida
Superfamily:	Scissurelloidea
Family:	Scissurellidae
Genus:	Sinezona
Species:	S. rimuloides
Binomial name
	Sinezona rimuloides; (Carpenter, 1865)
Synonyms
	Scissurella rimuloides Carpenter, 1865;

Sinezona rimuloides is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Scissurellidae, the little slit snails.^[1]^[2]^[3]

Description

The shell attains a height of 0.8 mm. (Original description by Carpenter) This beautiful little species is the first known from America. It looks like a Velutina crossed by sharp ribs in the direction of the slanting mouth. In the first whorl the ribs are very close. It then assumes its normal sculpture, but there is nearly a whorl before there is any trace of incision. This appears to have begun as a slit, which was afterwards closed up. A band, marked off by ten transverse ribs showing stages of growth, encircles the shell as far as the hole, which is long and somewhat rectangular; but there is no band between the hole and the outer lip.^[4]

Distribution

This species occurs in the Pacific Ocean from California, USA to Chile; off the Galápagos Islands.

References

^ ^a ^b Rosenberg, G. (2012). Sinezona rimuloides. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=492827 on 2013-02-16
^ 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
^ Geiger D.L. (2012) Monograph of the little slit shells. Volume 1. Introduction, Scissurellidae. pp. 1-728. Volume 2. Anatomidae, Larocheidae, Depressizonidae, Sutilizonidae, Temnocinclidae. pp. 729-1291. Santa Barbara Museum of Natural History Monographs Number 7. (30 October 2012)
^ Capenter P. (1872) The Mollusks of Western North America, Smithsonian Institution, Washington (described as Scissurella rimuloides)