Drillia rimata

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Drillia rimata
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Superfamily: Conoidea
Family: Drilliidae
Genus: Drillia
Species:
D. rimata
Binomial name
Drillia rimata
(Smith E.A., 1888)
Synonyms

Pleurotoma (Drillia) rimataSmith E.A., 1888

Drillia rimata is a species of small predatory sea snail, a marine gastropod mollusk in the family Drilliidae. [1] It is distinguished by the distinct aperture and the livid "purplish flesh-color" of the shell. [1]

Contents

It was first documented in 1888 by E. A. Smith as Pleurotoma (Drillia) rimata, however the status of this synonym is classified as uncertain due to taxon inquirendum. It is accepted as Drillia rimata, with the genus name (Drillia) from J. E. Gray's 1838 publication. [2]

Distribution

Species of Drilliidae are found all over the world, from intertidal to abyssal depths. However, very little is known about the distribution and habitat of D. rimata. No type locality or habitat is described in E. A. Smith's original publication. [1]

Description

The shell grows to a length of 31 mm; its diameter 9 mm. [1]

The distinct aperture and the "livid purplish flesh-color" are the main identifying characters of D. rimata, according to E. A. Smith's original description. [1]

A diagram of a mollusk shell outlining some of the technical terms Diagram of a mollusk shell.png
A diagram of a mollusk shell outlining some of the technical terms

The shell is elongated, thick, somewhat turreted, and distinctly grooved. The shell is slightly concave on top with slanting ribs; sutures barely making contact in the middle of the shell. The aperture is "purplish flesh-color" and is equal to two fifths of the shell's length; the side opening is near the suture. The columella (inner lip) very oblique and thick; the anterior canal is very short and curved. [1]

The radula of the D. rimata, just like other Drilliidae species, consists five teeth in each row with a vestigial ("wisdom") tooth, comb-like lateral teeth and a pair of flat-pointed, slender, marginal teeth. [3]

See also

Sketching of Drillia sesquitertia, member of the Drillia genus, of which D. rimata is a part of Drillia sesquitertia 001.jpg
Sketching of Drillia sesquitertia , member of the Drillia genus, of which D. rimata is a part of

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References

  1. 1 2 3 4 5 6 The Annals and Magazine of Natural History: Including Zoology, Botany, and Geology 6th ser. v.2. (1888); p. 302
  2. ↑ "Molluscabase - Pleurotoma (Drillia) rimata E. A. Smith, 1888". www.molluscabase.org. Retrieved 22 February 2024.
  3. ↑ Kantor, Yuri I; John D.Taylor (2000). "Formation of marginal radular teeth in Conoidea (Neogastropoda) and the evolution of the hypodermic envenomation mechanism". Journal of Zoology. 252 (2). Cambridge University Press: 251–262. doi:10.1111/j.1469-7998.2000.tb00620.x.
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