Odostomia nemo

Odostomia nemo
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Heterobranchia clade Euthyneura clade Panpulmonata
Superfamily:	Pyramidelloidea
Family:	Pyramidellidae
Genus:	Odostomia
Species:	O. nemo
Binomial name
Odostomia nemo Dall & Bartsch, 1909
Synonyms
Odostomea (Evalea) nemo Dall & Bartsch, 1909

Odostomia nemo is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.^{[1] [2]}

Description

The elongate-conic shell is milk-white. tsd length is 4.8 mm. The nuclear whorls are deeply obliquely immersed in the first of the succeeding turns, above which only the edge of the last volution projects. The post-nuclear whorls are flattened in the middle, moderately contracted at the suture, and roundly shouldered at the summit. The sutures are strongly impressed. The periphery and base of the body whorl is somewhat inflated, well rounded, the latter very frequently narrowly umbilicated. The entire surface of the spire and base is marked by vertical lines of growth and numerous exceedingly fine, spiral striations. The aperture is ovate, somewhat effuse anteriorly. The posterior angle is acute. The outer lip is thin. The columella is thin, curved, strongly reflected, provided with a fold at its insertion. The parietal wall is glazed with a thin callus. ^[3]

Distribution

This species occurs in the Pacific Ocean off California.

References

1. ^ Rosenberg, G. (2011). Odostomia nemo Dall & Bartsch, 1909. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=581232 on 2011-11-10
2. ^ Turgeon, D.; Quinn, J.F.; Bogan, A.E.; Coan, E.V.; Hochberg, F.G.; Lyons, W.G.; Mikkelsen, P.M.; Neves, R.J.; Roper, C.F.E.; Rosenberg, G.; Roth, B.; Scheltema, A.; Thompson, F.G.; Vecchione, M.; Williams, J.D. (1998). Common and scientific names of aquatic invertebrates from the United States and Canada: mollusks. 2nd ed. American Fisheries Society Special Publication, 26. American Fisheries Society: Bethesda, MD (USA). ISBN 1-888569-01-8. IX, 526 + cd-rom pp.
3. ^ William Healy Dall and Paul Bartsch , "A Monograph of West American Pyramidellid Mollusks" , Smithsonian Institution, 1909

External links

External identifiers for Odostomia nemo
WoRMS	581232

• To World Register of Marine Species