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Oceanida

From Wikipedia, the free encyclopedia

Oceanida
Shell of Oceanida graduata. Origin: Guadeloupe, syntype at National Museum of Natural History, France
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Littorinimorpha
Superfamily: Vanikoroidea
Family: Eulimidae
Genus: Oceanida
de Folin, 1870
Type species
Oceanida graduata
de Folin, 1871
Synonyms[1]
  • Athleenia Bartsch, 1946
  • Spiroclimax Mörch, 1875

Oceanida is a genus of very small parasitic sea snails, marine gastropod mollusks or micromollusks in the family Eulimidae.[1]

This genus was described by Léopold de Folin in 1870. These are subtidal snails that are parasitic on echinoderms. Their length varies between 2 and 3 mm.

Description

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(Originally described in Latin as Spiroclimax) The shell exhibits a subcylindrical form, characterized by transparency and a suture that resembles a gently descending spiral staircase. The aperture displays an auriculate shape. The outer lip is thickened, featuring a sigmoidally margined profile that curves inward towards the suture. The columella is moderately thick, adorned with a funicular cord and exhibiting minimal plication. The protoconch is polished and positioned at a right angle. [2]

Species

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Species within this genus include:[1]

Species brought into synonymy
  • Oceanida burryi (Bartsch, 1946): synonym of Oceanida graduata de Folin, 1871
  • Oceanida catalinensis (Bartsch, 1920) : synonym of Pseudosabinella bakeri (Bartsch, 1917)
  • Oceanida lepida (A. Adams, 1864): synonym of Leiostraca pygmaea A. Adams, 1864
  • Oceanida ovalis de Folin, 1884: synonym of Doliella nitens' (Jeffreys, 1870)
  • Oceanida pumila A. Adams, 1864 (taxon unverified- still inquarantine at WoRMS)
  • Oceanida tumerae Laseron, 1955: unpublished combination for Hebeulima tumere Laseron, 1955)
  • Oceanida scalaris (Mörch, 1875): synonym of Oceanida graduata de Folin, 1871

References

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  1. ^ a b c Oceanida de Folin, 1870. Retrieved through: World Register of Marine Species on 5 January 2019.
  2. ^ Mörch, O.A.L. (1875). "Synopsis molluscorum marinorum Indiarum occidentalium imprimis insularum danicarum". Malakozoologische Blätter. 22: 168. Retrieved 12 February 2025. Public Domain This article incorporates text from this source, which is in the public domain.
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