Atys dactylus
| Atys dactylus | |
|---|---|
| Drawing of a shell of Atys dactylus (holotype) | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Cephalaspidea |
| Family: | Haminoeidae |
| Genus: | Atys |
| Species: | A. dactylus
|
| Binomial name | |
| Atys dactylus Hedley, 1899
| |
Atys dactylus is a species of small tropical sea snail, a bubble snail, a marine opisthobranch gastropod mollusk in the family Haminoeidae, the haminoea bubble snails.[1]
This is a taxon inquirendum.
Description
The length of the shell attains 4½ mm, its diameter 2½ mm.
(Original description) The shell is date-shaped and is truncated both above and below. It is minutely perforate at the apex and deeply, narrowly umbilicate below. The colour is a glossy white. Regarding the sculpture, sixty to seventy irregularly waved, narrow, and shallow grooves girdle the shell. Between these grooves lie smooth, flat-topped lyrae that are two or three times the breadth of the grooves. These features are crossed at irregular intervals by both fine and coarse growth lines.
The aperture is vertical and stands longer than the shell itself; it is narrowly arched, dilated above and below, and appears rather effuse anteriorly. Above, the lip rises from the centre of the apical crater and, by folding back, almost covers the perforation. While the outer lip is straight and simple, the columella is broadly reflexed, emarginate without, and tuberculate within. Finally, a short tongue of callus extends a little distance upwards along the body whorl.[2]
Distribution
This marine species occurs off Funafuti.
References
- ^ a b Atys dactylus Hedley, 1899. 6 January 2026. Retrieved through: World Register of Marine Species.
- ^ Hedley, C. (1899). "The Mollusca of Funafuti. Part I - Gasteropoda". Memoirs of the Australian Museum. 3 (7): 484. Retrieved 6 January 2026. This article incorporates text from this source, which is in the public domain.