Oceanida

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

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

(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.

Species

Species within this genus include:

• Oceanida abrejosensis <small>Bartsch, 1917</small>
• Oceanida confluens <small>Bouchet & Warén, 1986</small>
• Oceanida corallina <small>Hedley, 1912</small>
• Oceanida faberi <small>De Jong & Coomans, 1988</small> - the common labeo - found from Aruba to Northeast Brazil.
• Oceanida graduata <small>de Folin, 1871</small> - the shouldered eulima - distributed in North America; Western Atlantic Ocean; synonyms : Spiroclimax scalaris Mörch, 1875; Athleenia burryi Bartsch, 1946
• Oceanida hypolysina <small>Melvill, 1904</small>
• Oceanida inglei <small>Lyons, 1978</small> - distributed in North America; Western Atlantic Ocean
• Oceanida lampra <small>Melvill, 1918</small>
• Oceanida mindoroensis <small>Adams & Reeve, 1850</small>
• Oceanida whitechurchi <small>Turton, 1932</small>

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: unpublished combination for Hebeulima tumere 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