Asthelys
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| Asthelys | |
|---|---|
| Shell of Asthelys semiplicata | |
| Scientific classification | |
| 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]