Leptadrillia loria

Leptadrillia loria
Original image of a shell of Leptadrillia loria
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Caenogastropoda
Clade: Hypsogastropoda
Clade: Neogastropoda
Superfamily: Conoidea
Family: Drilliidae
Genus: Leptadrillia
Species: L. loria
Binomial name
Leptadrillia loria
Bartsch P., 1934

Leptadrillia loria is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.[1]

Paul Bartsch originally misspelled this species as Leptodrillia loria. In 1973 Perrilliat renamed it as Leptadrillia loria. [2]

Description

The shell grows to a length of 6.8 mm, its diameter 2.5 mm.

(Original description) The small, vitreous, semitranslucent shell has an elongate-conic shape.. The protoconch contains 1.5,well rounded, smooth whorls. The postnuclear whorls are moderately well rounded, marked by rather strong, almost vertical axial ribs, which become weak toward the summit and which attain their largest development on the posterior third of the whorls. On the first whorl on the teleoconch these ribs are cusped; on the later ones they become less elevated. On the body whorl they extend but feebly across the base and evanesce on the columella. These ribs are about two thirds as wide as the spaces that separate them. Eight are present on the first, and 10 on all but the body whorl, which has 12. In addition to the axial ribs the whorls are marked by fine incremental lines on the spire as well as the base. The suture is well impressed. The periphery is well rounded. The base of the shell is moderately long, well rounded. The spiral sculpture is absent on the spire and the base and present on the short, stout columella, which is crossed by nine spiral threads. The aperture rather large, strongly channeled anteriorly and posteriorly. The posterior sinus is deeply notched and immediately below the summit. There is a slender stromboid notch a little posterior to the anterior termination of the outer lip. The space between this and the posterior sinus is protracted into a clawlike element. The inner lip is appressed to the columella as a callus which extends up over the parietal wall, where it develops into a conspicuous nodule near the posterior angle. [3]


Distribution

This species occurs in the demersal zone of the Caribbean Sea off Puerto Rico at depths between 274 m and 357 m.

References

  1. ↑ Leptadrillia loria Bartsch, 1934.  Retrieved through: World Register of Marine Species on 30 October 2011.
  2. ↑ Perrilliat, M. del C. (1973) Monografía de los moloscos del Mioceno Medio de Santa Rosa, Veracruz, México. Parte II (gasterópodos: Mitridae a Terebridae). Universidad Nacional Autónoma de México, Instituto de Geología, Paleontología Mexicana, 35, 1–97, 39 pls.
  3. ↑ Bartsch, P. (1934) Reports on the collections obtained by the first Johnson-Smithsonian deep-sea expedition to the Puerto Rican deep; new mollusks of the family Turritidae. Smithsonian Miscellaneous Collections, 91, 1–29, 8 pls
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