Epitoniidae Berry, 1910 (1812)

Epitonium adjunctum

(Jousseaume, 1912)

Description:

Dimensions range from 8 mm high.

Shell: conical; solid, rather solid; small. Exterior colour milky white, glossy. About 9 whorls; protoconch with ~3 whorls smooth; teleoconch with 5-6 whorls rounded, slightly depressed near the suture. Suture deep, fenestrated. Imperforate. Approximately 9 - 10 costae on the body whorl. Costae are thin, erect. Costae joined across the suture. Columella ribs fuse with the columellar edge. Aperture round; peristome very thick,with a small spine-like projection at the suture.

Distribution:

Red Sea to Aden

Habitat:

not reported

Etymology:

[latin] from adjunctus = joined or attached, possible reference to the costae being joined across the suture

Type Material:

Syntypes: MNHN 4199 [as Turbiniscala adjuncta Jousseaume, 1912] - Type Locality: Aden, Périm.. [Brown, L. & Neville, B.D., 2015]

SpeciesImage

Jousseaume, F. (1912). Plate VI. Fig. 31-32.

Distribution

as listed in source literature

Jousseaume, F. (1912).

Species Image

Plate VI. Fig. 31-32.

Species Image

pp: 201-202.

Kaicher, S.D. (1980).

Species Image

Card #: EP2-3123

MNHN (2025f).

Species Image

Syntype Set of 2 specimens MNHN-IM-2000-4199

Synonymy:

Turbiniscala adjuncta Jousseaume, 1912 [in Brown, L. & Neville, B.D., 2015].

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. (1980). Epitoniidae I [Pack 23]. S. D. Kaicher, St. Petersburg, Florida. http://www.femorale.com/kaicher/species.asp?f=Epitoniidae&c=125 [Accessed 8 May 2023]
MNHN (2025f). Syntype for Turbiniscala adjuncta Jousseaume, 1912 MNHN-IM-2000-4199. Image. https://science.mnhn.fr/institution/mnhn/collection/im/item/2000-4199 [Accessed 2 July 2025]
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