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Epitoniidae Berry, 1910 (1812)

Epitonium innesi

(Jousseaume, 1912)

Description:

Dimensions range from 4.1 mm - 5 mm high and 3 mm wide.
Width to height ratio: 0.73:1 ~ 0.6:1

Shell: conical, and scalariform; moderately solid; minute. About 8 whorls, slightly convex whorls; protoconch with ~3 whorls smooth; teleoconch with ~5 whorls rounded and slightly flattened at the suture. Spire distinctly conical. Umbilicate: narrow umbilicus, which is partially covered by the columellar expansion. Approximately 20 - 25 costae on the body whorl. Costae are somewhat prominent. Costae project at a sharp angle, forming a crown-like structure; edges that curve slightly backward. Intercostal spaces strongly, spirally striate. Aperture oval; peristome thick and barely expanded.


Distribution:

Red Sea to Aden, Djibouti


Habitat:

not reported


Etymology:

named for Dr. Innes-Bey., This species is dedicated to Dr. Innes-Bey, not only as an expression of deep respect and admiration but as a tribute to his scientific contributions and dedicated research. His commitment to the advancement of science and his support for fellow researchers in their explorations have been invaluable


Type Material:

Syntypes: MNHN 4281 for Epitonium innesi (Jousseaume, 1912) - Locality: Djeddah, Aden, Djibouti.. [Brown, L. & Neville, B.D., 2015]


SpeciesImage

Jousseaume, F. (1912). Plate V. Fig. 31-33.

Innesiscala Innesi sp. n.
PI. V, fig. 31-36.

Distribution

as listed in source literature

Jousseaume, F. (1912).
Species Image
Plate V. Fig. 31-33.
Innesiscala Innesi sp. n.
PI. V, fig. 31-36.
Species Image
pp: 218.
Kaicher, S.D. (1981).
Species Image
Card #: EP2-3077.
Quite sturdy; whitish; with 20-25 costae, "peaked" below sutures; strongly, spirally striate; to approx. 5 mm. Type species of the
genus/subgenus Innesiscala.
(Paris Museum - syntype)

Source Literature:

Brown, L. & Neville, B.D. (2015). Catalog of the recent taxa of the families Epitoniidae and Nystiellidae (Mollusca: Gastropoda) with a bibliography of the descriptive and systematic literature. Zootaxa. 3907(1). Magnolia Press Auckland, New Zealand. http://dx.doi.org/10.11646/zootaxa.3907.1.1 [Accessed 22 October 2023]
Jousseaume, F. (1912). Faune malacologique de la Mer Rouge. Scalidae. Mémoires de la Société Zoologique de France.. 24(3-4). Mémoires de la Société Zoologique de France.. https://www.biodiversitylibrary.org/page/10095979 [Accessed 1 March 2025]
Kaicher, S.D. (1981). Epitoniidae II [Pack 30]. S. D. Kaicher, St. Petersburg, Florida. http://www.femorale.com/kaicher/species.asp?f=Epitoniidae&c=125 [Accessed 8 May 2023]
Weil, A., Brown, L. & Neville, B. (1999). The Wentletrap Book. Evolver
WoRMS Editorial Board (2025). World Register of Marine Species. https://www.marinespecies.org [Accessed 8 November 2025]

WoRMS direct page link: Open WoRMS record