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Epitoniidae Berry, 1910 (1812)

Epitonium lachrymulum

(Jousseaume, 1912)

Description:

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

Shell: elongated-conical, slightly inflated; fairly solid; minute. Exterior colour white, slightly translucent, polished. About 9 whorls; protoconch with ~3 whorls smooth; teleoconch with ~6 whorls rounded, regularly increasing. Suture impressed, perforated. Approximately 20 costae on the body whorl. Intercostal spaces intervals are smooth. Aperture nearly round; peristome somewhat thick..


Distribution:

Périm, Aden.


Habitat:

not reported.


Etymology:

[latin] from lachryma = tear and -ulum = a suffix small or little.


Type Material:

Syntypes: MNHN 4301 (syntypes). [as Perlucidiscala lacrymula Jousseaume, 1912:] - Type Locality: Périm, Aden.. [Brown, L. & Neville, B.D., 2015]


SpeciesImage

Jousseaume, F. (1912). Plate V. Fig. 37-39.

Perlucidiscala lacrymula sp. n.
Pl.V, fig. 37-42

Distribution

as listed in source literature

Jousseaume, F. (1912).
Shown in text as Perlucidiscala lacrymula
Species Image
Plate V. Fig. 37-39.
Perlucidiscala lacrymula sp. n.
Pl.V, fig. 37-42
Species Image
pp: 198.
Kaicher, S.D. (1981).
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Card #: EP2-3063.
Shell fairly solid; imperforate; shiny white; with about 20 low costae; sutures impressed; to approx. 5 mm. (Paris Mus.-syntype)

Card #: EP2-3063

Synonymy:

Perlucidiscala lacrymula [in Jousseaume, F., 1912].
Perlucidiscala lacrymula 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. (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