| Asthelys | |
|---|---|
 | |
| Shell of Asthelys semiplicata | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Vetigastropoda |
| Family: | Seguenziidae |
| Subfamily: | Asthelysinae |
| Genus: | Asthelys Quinn, 1987 [1] |
| Type species | |
| Basilissa munda Watson, 1879 | |
Asthelys is a genus of sea snails, marine gastropod mollusks in the family Seguenziidae. [2]
The conical shell lacks axial riblets and a peripheral carina but has a punctate microsculpture. The midwhorl angulation is initially absent, but present on later whorls. The shell contains no spiral lirae. The U-shaped posterior sinus is shallow. The basal sinus is present, but there is no anterolateral sinus. The columella has no sinus or tooth. Tha aperture has a rhomboidal shape. There is no umbilical septum.
Radula: the rachidian tooth is broader than high and has lateral wings prominent. The lateral tooth cusp is broad. There are less than 10 marginal tooth pairs. [3]
Species within the genus Asthelys include:
Calliostoma is a genus of small to medium-sized sea snails with gills and an operculum, marine gastropod molluscs within the family Calliostomatidae, the Calliostoma top snails. Previously this genus was placed within the family Trochidae. Calliostoma is the type genus of the family Calliostomatidae.
Seguenziidae is a family of very small deepwater sea snails, marine gastropod mollusks in the superfamily Seguenzioidea.
Solariellidae is a family of small sea snails, marine gastropod mollusks in the superfamily Trochoidea.
Seguenzioidea is a superfamily of minute to medium-sized sea snails, marine gastropod mollusks in the clade Vetigastropoda.
Basilissopsis rhyssa is a species of sea snail, a marine gastropod mollusc in the family Seguenziidae.
Basilissopsis watsoni is a species of minute sea snail, a marine gastropod mollusc in the family Seguenziidae.
Carenzia carinata is a species of sea snail, a marine gastropod mollusk in the family Seguenziidae.
Hadroconus altus is a species of sea snail, a marine gastropod mollusk in the family Seguenziidae.
Ancistrobasis is a genus of sea snails, marine gastropod mollusks in the family Seguenziidae.
Basilissopsis is a genus of sea snails, marine gastropod mollusks in the family Seguenziidae.
Guttula is a genus of sea snails, marine gastropod mollusks in the family Seguenziidae.
Hadroconus is a genus of sea snails, marine gastropod mollusks in the family Seguenziidae.
Seguenzia is a genus of sea snails, marine gastropod mollusks in the family Seguenziidae.
Eudolium is a genus of large sea snails, marine gastropod mollusks in the family Tonnidae, the tun shells.
Quinnia is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the subfamily Seguenziinae of the family Seguenziidae.
Sericogyra is a genus of sea snails, marine gastropod mollusks in the family Seguenziidae.
Thelyssina is a genus of sea snails, marine gastropod mollusks in the family Seguenziidae.
Bathymophila callomphala is a species of sea snail, a marine gastropod mollusk in the family Solariellidae.
Basilissa is a genus of extremely small deep water sea snails. They are marine gastropod mollusks in the family Seguenziidae.
Carenzia melvilli is a species of small deep water sea snails, a marine gastropod mollusk in the family Seguenziidae.
