Mangelia coarctata
Mangelia coarctata is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae. Description
The length of the shell attains 10 mm. Distribution
This species occurs in the Mediterranean Sea off Greece. Fossils have been found in Pliocene strata in the Alpes-Maritimes, france. References

 Brugnone, G.A. (1862) Memoria sopra alcuni pleurotomi fossili dei dintorni di Palermo. F. Lao, Palermo, 41 pp., 1 pl. Spada, G., Sabelli, B. & Giannuzzi-Savelli, R. (2023). Mangelia Risso, 1826 and allied genera in the Mediterranean with the description of a new genus and three new species (Gastropoda: Mangeliidae). Bollettino Malacologico. 59(1): 1-53. External links
 Forbes, E. 1840. On some new and rare British mollusca. Annals and Magazine of Natural History, 5(29): 102-108, pl. 2

coarctata
Gastropods described in 1840