| Alcyna | |
|---|---|
 | |
| Drawing of a shell of Alcyna lifuensis | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Vetigastropoda |
| Order: | Trochida |
| Superfamily: | Trochoidea |
| Family: | Trochidae |
| Genus: | Alcyna A. Adams, 1860 |
| Type species | |
| Alcyna ocellata Adams, A., 1860 | |
| Synonyms [1] | |
| |
Alcyna is a genus of sea snails, marine gastropod mollusks in the family Trochidae, the top snails. [1]
This genus was previously included in the family Phasianellidae.
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. [2]
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. [3]
Species within the genus Alcyna include: [1]
Cingulina is a genus of small sea snails, pyramidellid gastropod mollusks. in the family Pyramidellidae, the pyrams and their allies.
Herpetopoma is a genus of sea snails, marine gastropod molluscs of the family Chilodontaidae.
Tornidae is a family of very small and minute sea snails with an operculum, marine gastropod mollusks in the clade Littorinimorpha. This family used to be known as the Vitrinellidae. Iredale has shown that the family Adeorbidae Monterosato, 1884 should be called Tornidae
Cantharidus, common name the kelp shells, is a genus of sea snails, marine gastropod molluscs of the family Trochidae, the top shells.
Pyramidella is a genus of minute to medium-sized sea snails, marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.
Haminoea is a genus of medium-sized sea snails or bubble snails, marine opisthobranch gastropod molluscs in the family Haminoeidae, the haminoea bubble snails, part of the clade Cephalaspidea, the headshield slugs and bubble snails.
Tricolia is a genus of sea snails, marine gastropod mollusks in the family Phasianellidae.
Chlorostoma is a genus of sea snails, marine gastropod mollusks in the family Tegulidae.
Minolia is a genus of sea snails, marine gastropod mollusks in the family Solariellidae.
Euchelus is a genus of sea snails, marine gastropod mollusks in the family Chilodontaidae.
Monilea is a genus of sea snails in the family Trochidae, the top snails.
Phasianotrochus is a genus of sea snails. They are marine gastropod molluscs in the family Trochidae, the top snails.
Borsonia is a genus of sea snails, marine gastropod mollusks in the family Borsoniidae.
Mormula is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.
Stylopsis is a genus of sea snails. In other words, they are a genus of marine gastropod, gastropods being a class of mollusk. This creature is within a particular family of sea snail called Pyramidellidae.
Calliotrochus is a genus of sea snails, marine gastropod mollusks in the family Trochidae, the top snails.
Thalotia is a genus of sea snails, marine gastropod mollusks in the family Trochidae, the top snails.
Alcyna subangulata is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Cytharopsis is a genus of sea snails, marine gastropod mollusks in the family Mangeliidae.
Hemicythara octangulata is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.
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