- Odostomia aepynota
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Odostomia aepynota 
Odostomia aepynota Scientific classification Kingdom: Animalia Phylum: Mollusca Class: Gastropoda (unranked): clade Heterobranchia
clade Euthyneura
clade PanpulmonataSuperfamily: Pyramidelloidea Family: Pyramidellidae Genus: Odostomia Species: O. aepynota Binomial name Odostomia aepynota
Dall & Bartsch, 1909Synonyms Miralda aepynota Dall & Bartsch, 1909
Odostomia aepynota is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.[1][2][3]
Contents
Description
The pupiform shell is translucent. Its length is 1 mm. The nuclear whorls are small, obliquely immersed in the first post-nuclear turns, marked by four spiral cords. The summits of the five post-nuclear whorls are appressed. They are marked by two strong, spiral keels between the sutures, a third at the periphery, and a fourth on the middle of the base, the last two somewhat less strong than the rest. The posterior keel forms the strong tabulation at the summit of the whorls and is strongly tuberculated, 14 tubercles appearing upon the second and 20 upon the remaining whorls. The space between the keels is marked by rather strong lines of growth. The greatest convexity coincides at the superperipheral keel. The aperture is irregularly ovate and somewhat effuse anteriorly. The posterior angle is obtuse. The thin outer lip is angulated by the keels, showing the external markings within. The columella is strong, curved, without visible fold in the aperture. The shell is reenforced by the base. The parietal wall covered bv a thin callus. [4]
Distribution
This species occurs in the Pacific Ocean off California.
References
- ^ Rosenberg, G. (2011). Odostomia aepynota Dall & Bartsch, 1909. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=575816 on 2011-10-26
- ^ 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.
- ^ Keen M. (1971). Sea shells of Tropical West America. Marine mollusks from Baja California to Perú. (2nd edit.). Stanford University Press pp. 1064:
- ^ William Healy Dall and Paul Bartsch , "A Monograph of West American Pyramidellid Mollusks" , Smithsonian Institution, 1909
External links
External identifiers for Odostomia aepynota WoRMS 575816 Categories:
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