Crisilla simulans (Locard, 1886)
Western and central Mediterranean. Grazer and detritus feeder in the infralittoral. Original taxon: Alvania simulans.
 
« Very small, somewhat elongate, whorls convex, longitudinal costae obsolete; decurrent cords weak; some fawn stains… » – Locard & Caziot: “Les coquilles marines des côtes de Corse”, Annales de la Société Linnéenne de Lyon n.s. tome 47, Lyon 1901, p.52. The shell looks a little like that of an Alvania.

Anse Bernardi, Port-Vendres, Pyrénées-Orientales, Occitania, S. France. 1,3mm.
The longitudinal ribs are more visible just after the suture.
Beached, Leucate, Occitania, S. France. 1,6mm.
Original pictures provided by S. Clanzig (FR).
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