Atys obscuratus

Atys obscuratus
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Cephalaspidea
Family:	Haminoeidae
Genus:	Atys
Species:	A. obscuratus
Binomial name
Atys obscuratus Dall, 1896
Synonyms [1]
Atys (Aliculastrum) obscuratusDall, 1896

Atys obscuratus, common name the obscure glassy-bubble, 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]

Description

The length of the shell attains 4 mm, its diameter 2 mm.

(Original description) The shell is small and notably wider than that of † Atys gracilis Dall, 1896. It differs from the latter species by possessing a lateral profile that is evenly curved, ensuring that no indication of an equatorial swelling is visible. Furthermore, the aperture is proportionately wider and less produced behind, while the inner lip above the spire is more strongly twisted.

At the spire, there is a shallow pit but no perforation, nor is there any thickened, striated rim present at the margin of the pit. Although the spiral grooving is similarly distributed, it appears rather sharper than in A. gracilis. Additionally, the columella is less obviously twisted; it is obliquely truncate and narrow, and it features a narrow but obvious groove located behind it. ^[2]

Distribution

This marine species occurs off North Carolina, USA (S.E. of Cape Fear: 26-29 m.)

Fossils of this species were found in Miocene strata on Jamaica and Florida, USA.

References

1. Atys obscuratus Dall, 1896 . 10 January 2026. Retrieved through: World Register of Marine Species .
2. Dall, W.H. (1896). "Diagnoses of new Tertiary fossils from the southern United States". Proceedings of the United States National Museum. 18 (1035): 30. Retrieved 10 January 2026. This article incorporates text from this source, which is in the public domain .

• Turgeon, D., Quinn, J. F., Bogan, A. E., Coan, E. V., Hochberg, F. G., Lyons, W. G., Mikkelsen, P. M., Neves, R. J., Roper, C. F. E., Rosenberg, G., Roth, B., Scheltema, A., Thompson, F. G., Vecchione, M., Williams, J. D. (1998). Common and scientific names of aquatic invertebrates from the United States and Canada: mollusks. 2nd ed. American Fisheries Society Special Publication, 26. American Fisheries Society: Bethesda, MD (USA). ISBN 1-888569-01-8. IX, 526 + cd-rom pp.
• A. J. W. Hendy, D. P. Buick, and K. V. Bulinski, C. A. Ferguson, A. I. Miller. 2008. Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions

External links

• Porter, H.J. (1974). The North Carolina marine and estuarine Mollusca: An Atlas of occurrence. Morehead City: The University of North Carolina Institute of Marine Science. p. 277.