Odostomia resina

Odostomia resina is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.[2][3]

Odostomia resina
Apertural view of a shell of Odostomia resina
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Panpulmonata
Superfamily:
Pyramidelloidea
Family:
Pyramidellidae
Genus:
Odostomia
Species:
O. resina
Binomial name
Odostomia resina
Dall & Bartsch, 1909
Synonyms[1]
  • Evalea resina Dall & Bartsch, 1909
  • Odostomia (Evalea) resina Dall & Bartsch, 1909 (basionym)

Description

The very small shell is vitreous, transparent. Its length measures 2.2 mm. 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 five whorls of the teleoconch are inflated, strongly rounded, decidedly contracted at the suture, and appressed at the summit, where the preceding whorl is reflected through it, and gives the summit the false appearance of having a spiral cord. The sutures are strongly constricted. The periphery and the base of the body whorl are well rounded. The entire surface of the shell is marked by lines of growth which are of varying strength, and numerous closely spaced, exceedingly fine, spiral striations. The aperture is ovate. The posterior angle is acute. The outer lip is thin, showing the external sculpture within. The columella is slender, strongly curved, slightly revolute, reinforced by the base, and provided with a fold at its insertion.[4]

Distribution

This species occurs in the Pacific Ocean off California.

References
  1. Dall & Bartsch, A Monograph of West American Pyramidellid Mollusks, United States National Museum Bulletin 68, p. 216; 1909 Plate 27 # 6
  2. Rosenberg, G. (2011). Odostomia resina Dall & Bartsch, 1909. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=581245 on 2011-11-10
  3. 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.
  4. Dall & Bartsch, A Monograph of West American Pyramidellid Mollusks, United States National Museum Bulletin 68, p. 216; 1909
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