Curtitoma decussata

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Curtitoma decussata
Curtitoma decussata 001.jpg
Drawing of a shell of Curtitoma decussata
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Superfamily: Conoidea
Family: Mangeliidae
Genus: Curtitoma
Species:
C. decussata
Binomial name
Curtitoma decussata
(Couthouy, 1839)
Synonyms [1]
  • Bela decussata(Couthouy, 1839)not (Locard, 1892)
  • Bela tenuicostata var. frieleiFriele, 1886
  • Lora tenuicostata(G.O. Sars, 1878)
  • Oenopota decussataCouthouy
  • Oenopota decussatus(Couthouy, 1839)
  • Pleurotoma decussataCouthouy, 1839

Curtitoma decussata is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae. [1]

Contents

Description

The length of the shell varies between 5 mm and 13 mm.

The shell has an ovate-fusiform shape, with a moderate, scarcely turreted spire. It contains six or seven round-shouldered whorls. The sculpture consists of about 24 sigmoid longitudinal ribs, evanescing about the middle of the body whorl, and close revolving striae across the ribs. The sinus is well marked, close to the suture. The siphonal canal is narrowed, but short. The columella is nearly straight in the middle. The color of the shell is white, yellowish or pinkish white. [2]

Distribution

This marine species is circum-arctic and occurs in the Northwest Atlantic Ocean, Canada and the Gulf of Maine; on the continental shelf of the Alaska, Beaufort Sea; [3] found at depths between 25 m and 780 m. It has also been found as a fossil in Quaternary strata of Greenland and Iceland; age range: 2.588 to 0.781 Ma. [4]

References

  1. 1 2 Curtitoma decussata (Couthouy, 1839) . Retrieved through: World Register of Marine Species  on 8 August 2011.
  2. G.W. Tryon (1884) Manual of Conchology, structural and systematic, with illustrations of the species, vol. VI; Philadelphia, Academy of Natural Sciences
  3. "Konar, Brenda, and Alexandra M. Ravelo. Epibenthic Community Variability on the Alaskan Beaufort Sea Continental Shelf. Coastal Marine Institute, School of Fisheries and Ocean Sciences, University of Alaska, 2013" (PDF). Archived from the original (PDF) on 16 April 2017. Retrieved 15 April 2017.
  4. Fossilworks: Curtitoma decussata