''Fenimorea pagodula'' 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 ...

mollusc Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is esti ...

in the family Drilliidae.

Description

The size of an adult shell varies between 10 mm and 18 mm. (Original description) The shell resembles ''

Fenimorea fucata ''Fenimorea fucata'' is a species of sea snail, a marine gastropod mollusc in the family Drilliidae. Description The size of an adult shell varies between 10 mm and 27 mm. The shell is obsoletely channeled above the periphery which ...

'', but is much more slender, the fasciole less impressed. The spiral sculpture consists of fine engraved lines and the aperture is smaller and much more narrow. The

protoconch A protoconch (meaning first or earliest or original shell) is an embryonic or larval shell which occurs in some classes of molluscs, e.g., the initial chamber of an ammonite or the larval shell of a gastropod. In older texts it is also called ...

is glassy, rounded and two-whorled. The shell contains eight or nine strongly ribbed

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. The spiral sculpture, sometimes obsolete near the suture, consists of extremely fine, wavy, close-set, incised lines. The transverse sculpture consists of (on the penultimate whorl 9 to 11) nearly straight stout ribs extending from the suture over the periphery and lost on the base. The fasciole is not well marked;. The suture is distinct, somewhat appressed, undulated by passing over the ribs. The surface of the shell is more or less lustrous. Its color is white, spirally banded with rich yellow brown, sometimes on the periphery, sometimes on the base, etc., but the fasciole is usually white and the ribs are apt to show white, wholly or in part on the yellow, when present. The aperture is short, narrow, with hardly any

siphonal canal The siphonal canal is an anatomical feature of the shells of certain groups of sea snails within the clade Neogastropoda. Some sea marine gastropods have a soft tubular anterior extension of the mantle called a siphon through which water is ...

. The

anal sulcus The anal sulcus, also called the anal sinus or anal canal, in Gastropods is a notch, a shelly tube at the top of the aperture In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture and fo ...

is large and deeper than wide. The outer lip is thin and not internally lirate. The throat is white. The inner lip is a little callous. The short columella is simple. The siphonal canal is very short and not differentiated from the aperture. The varix is stout and prominent. (described as ''Drillia pagodula'')

Distribution

This species occurs in the demersal zone of the Caribbean Sea, the Gulf of Mexico and the Lesser Antilles; in the Atlantic Ocean from Florida to Brazil at depths between 30 m and 282 m. This species was also found as a fossil in the strata of the

Caloosahatchee Formation The Caloosahatchee Formation is a geologic formation in Florida. It preserves fossils dating back to the Pleistocene. See also * List of fossiliferous stratigraphic units in Florida See also * Paleontology in Florida References * {{D ...

Quaternary The Quaternary ( ) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS). It follows the Neogene Period and spans from 2.58 million years ...

of Florida at North St PetersburgFossilworks: ''Fenimorea pagodula''
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References

Tucker, J.K. 2004 ''Catalog of recent and fossil turrids (Mollusca: Gastropoda)''. Zootaxa 682:1–1295

Rosenberg, G., F. Moretzsohn, and E. F. García. 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. Biodiversity. Texas A&M Press, College Station, Texas

External links

*
Dall W. H. 1889. Reports on the results of dredging, under the supervision of Alexander Agassiz, in the Gulf of Mexico (1877-78) and in the Caribbean Sea (1879-80), by the U.S. Coast Survey Steamer "Blake", Lieut.-Commander C.D. Sigsbee, U.S.N., and Commander J.R. Bartlett, U.S.N., commanding. XXIX. Report on the Mollusca. Part 2, Gastropoda and Scaphopoda. Bulletin of the Museum of Comparative Zoölogy at Harvard College 18: 1–492, pls. 10–40
{{DEFAULTSORT:Fenimorea Pagodula

pagodula ''Pagodula'' is a genus of sea snails, marine (ocean), marine gastropod mollusks in the subfamily Pagodulinae of the family (biology), family Muricidae, the murex snails or rock snails. Species Species within the genus ''Pagodula'' include: * ...

Gastropods described in 1889