Steromphala rarilineata (Michaud, 1829)
Mediterranean.
Grazer and deposit feeder in the very shallow infralittoral.
Original taxon: Trochus rarilineatus.
Synonyms: crimeana, purpurata
Under rocks at low tide, Málaga, Andalucia, S. Spain. 13mm.
Cap d’Agde, S. France. 6-11mm.
The suture is much less pronounced than in divaricata, the worls are less convex, the purple blotches smaller and less numerous, the basis is flat to concave.

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