''Stellatoma stellata'' is a species of

sea snail Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...

, a marine

gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...

mollusk in the family Mangeliidae.WoRMS (2009). Stellatoma stellata (Stearns, 1872). In: MolluscaBase (2017). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=420361 on 2018-01-27

Description

The adult shell grows to a length of 8.9 mm, its diameter 3.5 mm. The turreted shell is yellowish, tinged more or less with reddish brown. It contains seven

whorl A whorl ( or ) is an individual circle, oval, volution or equivalent in a whorled pattern, which consists of a spiral or multiple concentric objects (including circles, ovals and arcs). Whorls in nature File:Photograph and axial plane floral ...

s, angulated above and with a distinct suture. They show 12 or 13 strong, smooth longitudinal ribs, extending to the extremity of the basal volution, which also shows near its termination a few revolving lines. The outer lip is effuse, externally much thickened, deeply notched near the suture. The lip and columella in most specimens are dark ferruginous brown.

G.W. Tryon George Washington Tryon Jr. (20 May 1838 – 5 February 1888) was an American malacologist who worked at the Academy of Natural Sciences in Philadelphia. Biography George Washington Tryon was the son of Edward K. Tryon and Adeline Savid ...

adds to the above description that the interspaces of the ribs, in one of his specimens, are covered with fine revolving striae, and that another has a faint central band.G.W. Tryon (1884) Manual of Conchology, structural and systematic, with illustrations of the species, vol. VI; Philadelphia, Academy of Natural Sciences

Distribution

This marine species occurs off Tampa Bay, Florida, USA.

References

Stearns, R.E.C. (1872a) ''Descriptions of new species of marine mollusks from the coast of Florida''. Proceedings of the Boston Society of Natural History, 15, 21–24.

External links

Bouchet P., Kantor Yu.I., Sysoev A. & Puillandre N. (2011) A new operational classification of the Conoidea. Journal of Molluscan Studies 77: 273-308.
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Rosenberg, G.; Moretzsohn, F.; García, E. F. (2009). ''Gastropoda (Mollusca) of the Gulf of Mexico'', Pp. 579–699 in: Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Texas A&M Press, College Station, Texas
{{Taxonbar, from=Q3735769 stellata Gastropods described in 1872