Alcyna is a genus of sea snails, marine gastropod mollusks in the family Trochidae, the top snails.
This genus was previously included in the family Phasianellidae.
Description
The minute shell is similar in form to Phasianella. The aperture is ovate. The columella has a heavy callus, bearing near the base a strong curved denticle projecting into the aperture. The outer lip is simple.
The imperforate shell is acutely ovate. The convex whorls are spirally lirate and longitudinally striate. The columella is callous, and toothed below. The outer lip is smooth or toothed within, and varicose exteriorly.
Species
Species within the genus Alcyna include:
The following species were brought into synonymy:
- Alcyna flammulata <small>Pilsbry, 1917</small>: synonym of Alcyna subangulata <small>Pease, 1861</small>
- Alcyna kapiolaniae <small>Pilsbry, 1917</small>: synonym of Alcyna ocellata <small>A. Adams, 1860</small>
- Alcyna kuhnsi <small>Pilsbry, 1917</small>: synonym of Alcyna ocellata <small>A. Adams, 1860</small>
- Alcyna lepida <small>A. Adams, 1860</small>: synonym of Alcyna ocellata <small>A. Adams, 1860</small>
- Alcyna lineata <small>Pease, 1869</small>: synonym of Alcyna subangulata <small>Pease, 1861</small>
- Alcyna rubra <small>Pease, 1861</small>: synonym of Alcyna ocellata <small>A. Adams, 1860</small>
- Alcyna striata <small>Pease, 1869</small>: synonym of Alcyna subangulata <small>Pease, 1861</small>
- Alcyna subangulata flammulata <small>Pilsbry, 1917</small>: synonym of Alcyna subangulata <small>Pease, 1861</small>
- Alcyna subangulata virgata <small>Pilsbry, 1917</small>: synonym of Alcyna subangulata <small>Pease, 1861</small>
- Alcyna virgata <small>Pilsbry, 1917</small>: synonym of Alcyna subangulata <small>Pease, 1861</small>
References
- A. Adams (1860), On some new genera and species of Mollusca from Japan; The Annals and Magazine of Natural History, 1860
External links