The large, broadly conic shell measures 6.6 mm. It is milk-white and shining. The whorls of the protoconch are deeply obliquely immersed in the first of the succeeding turns, above which only the tilted edge of the last volution projects. The seven whorls of the teleoconch are moderately rounded, somewhat shouldered at the summit. They are marked by fine lines of growth and numerous, very fine, closely spaced spiral striations. The sutures are well impressed. The periphery of the body whorl is somewhat angulated. The base of the shell is sloping from the periphery to the umbilical area, but slightly rounded. The aperture is ovate. The posterior angle is obtuse. The outer lip is fractured. The columella is short, strong, curved, and revolute, provided with a strong fold at its insertion. The parietal wall is covered with a weak callus.[5]
Distributionedit
This species occurs in the Pacific Ocean off California.
Referencesedit
^Gould, Proc. Bost. Soc.. Nat. Hist., vol. G, 1852, p. 376
^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). ISBN1-888569-01-8. IX, 526 + cd-rom pp.
^William Healy Dall and Paul Bartsch , "A Monograph of West American Pyramidellid Mollusks" , Smithsonian Institution, 1909
A Monograph of West American Pyramidellid Mollusks, United States National Museum Bulletin 68, 1909 Plate 22 # 4
External linksedit
To World Register of Marine Species
To ITIS
May 07, 2024
odostomia, gravida, species, snail, marine, gastropod, mollusk, family, pyramidellidae, pyrams, their, allies, apertural, view, shell, scientific, classification, domain, eukaryota, kingdom, animalia, phylum, mollusca, class, gastropoda, subclass, heterobranch. Odostomia gravida is a species of sea snail a marine gastropod mollusk in the family Pyramidellidae the pyrams and their allies 3 4 Odostomia gravida Apertural view of a shell of Odostomia gravida Scientific classification Domain Eukaryota Kingdom Animalia Phylum Mollusca Class Gastropoda Subclass Heterobranchia Family Pyramidellidae Genus Odostomia Species O gravida Binomial name Odostomia gravidaGould 1853 1 Synonyms Evalea gravida Dall amp Bartsch 1909 Odostomia californica Dall and Bartsch 1909 Odostomia Evalea gravida Gould 1853 Odostomia Evalea io Dall amp Bartsch 1909 2 Contents 1 Description 2 Distribution 3 References 4 External linksDescription editThe large broadly conic shell measures 6 6 mm It is milk white and shining The whorls of the protoconch are deeply obliquely immersed in the first of the succeeding turns above which only the tilted edge of the last volution projects The seven whorls of the teleoconch are moderately rounded somewhat shouldered at the summit They are marked by fine lines of growth and numerous very fine closely spaced spiral striations The sutures are well impressed The periphery of the body whorl is somewhat angulated The base of the shell is sloping from the periphery to the umbilical area but slightly rounded The aperture is ovate The posterior angle is obtuse The outer lip is fractured The columella is short strong curved and revolute provided with a strong fold at its insertion The parietal wall is covered with a weak callus 5 Distribution editThis species occurs in the Pacific Ocean off California References edit Gould Proc Bost Soc Nat Hist vol G 1852 p 376 ITIS Odostomia io Rosenberg G 2011 Odostomia gravida Gould 1853 Accessed through World Register of Marine Species at http www marinespecies org aphia php p taxdetails amp id 581210 on 2011 11 10 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 William Healy Dall and Paul Bartsch A Monograph of West American Pyramidellid Mollusks Smithsonian Institution 1909 A Monograph of West American Pyramidellid Mollusks United States National Museum Bulletin 68 1909 Plate 22 4External links editTo World Register of Marine Species To ITIS Retrieved from https en wikipedia org w index php title Odostomia gravida amp oldid 1023753451, wikipedia, wiki, book, books, library,
