Odostomia septentrionalis

Last updated

Odostomia septentrionalis
Odostomia septentrionalis 001.png
Apertural view of a shell of Odostomia septentrionalis
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Family: Pyramidellidae
Genus: Odostomia
Species:
O. septentrionalis
Binomial name
Odostomia septentrionalis
Dall & Bartsch, 1909
Synonyms
  • Evalea septentrionalis (Dall & Bartsch, 1909)
  • Odostomia (Evalea) septentrionalis Dall & Bartsch, 1909

Odostomia septentrionalis is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies. [1] [2]

Contents

Description

The thin, soiled yellowish white shell is very elongate and has an ovate shape. Its length measures 4.3 mm. It is umbilicated. The whorls of the protoconch are small, smooth, very obliquely, deeply immersed in the first of the succeeding turns. The five whorls of the teleoconch are inflated, well rounded, their summits appressed. They are marked by fine, retractive lines of growth and numerous fine, wavy, spiral striations between the sutures and on the base. The posterior half of the base has, in addition to the above marking, three broad, low, feeble, raised, spiral threads. The umbilicus is very narrow. The aperture is large, very regularly oval. The posterior angle is obtuse. The thin outer lip is bending strongly outward in a broad sweeping curve. The long columella is slender, and regularly curved. It is moderately reflected, and not reinforced by the base. It is provided with a feeble oblique fold at its insertion. The parietal wall is glazed with a thin callus. [3]

Distribution

This marine species occurs off Unalaska, Alaska.

Related Research Articles

<i>Evalea amchitkana</i> Species of gastropod

Evalea amchitkana is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia aleutica</i> Species of gastropod

Odostomia aleutica is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia altina</i> Species of gastropod

Odostomia altina is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia atossa</i> Species of gastropod

Odostomia atossa is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia capitana</i> Species of gastropod

Odostomia capitana is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia clessini</i> Species of gastropod

Odostomia clessini is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia columbiana</i> Species of gastropod

Odostomia columbiana is a species of sea snail, a marine gastropod [[mollusc] in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia cypria</i> Species of gastropod

Odostomia cypria is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia enora</i> Species of gastropod

Odostomia enora is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia fetella</i> Species of gastropod

Odostomia fetella is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia franciscana</i> Species of gastropod

Odostomia franciscana is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia helga</i> Species of gastropod

Odostomia helga is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia kadiakensis</i> Species of gastropod

Odostomia kadiakensis is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia killisnooensis</i> Species of gastropod

Odostomia killisnooensis is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia lastra</i> Species of gastropod

Odostomia lastra is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia moratora</i> Species of gastropod

Odostomia moratora is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia movilla</i> Species of gastropod

Odostomia movilla is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia nemo</i> Species of gastropod

Odostomia nemo is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia stephensae</i> Species of gastropod

Odostomia stephensae is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

<i>Odostomia turricula</i> Species of gastropod

Odostomia turricula is a species of sea snail, a marine gastropod mollusc in the family Pyramidellidae, the pyrams and their allies.

References

  1. ↑ Rosenberg, G. (2011). Odostomia septentrionalis Dall & Bartsch, 1909. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=581250 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. ↑ Dall & Bartsch, A Monograph of West American Pyramidellid Mollusks, United States National Museum Bulletin 68, p. 205; 1909
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.