S. England to Canarias, Azores to Mediterranean and Black Sea. Interstitial in “spring” communities along the shore, in sheltered areas with small pebbles. Grazer and detritus feeder.
Synonyms: incompta Monterosato, tenue Milaschewitsch.
8m deep, on sand, Málaga, Andalucia, S. Spain. 1,8mm.
Les fonds de la mer, vol. I, Paris 1867-1871.
« Testa angustâ, elongatâ, paulô conicâ, arcuatâ, tenui, subtranslucidâ, nitidiusculâ, levi, minutissimè transversim irregulariter strialâ, ad basin haud tumente; aperturâ parùm declivi, haud contracta; septo maximo, valdè extante, super troncaturae planum primùm sub-cylindrico, dein mamillato, marginibus inferiore et dorsali rectis sub-parallelis, laterali convexo… »
Septum highly variable; microsculpture made of longitudinal wavy striae, similar to the one of Caecum trachea; sculpture made of very thin growth lines; general appearance smooth; no ring-like thickening at the aperture. – Hoeksema & Segers: “On the systematics and distribution of the marine gastropod Caecum armoricum De Folin 1869”, Gloria Maris 31(6) 79-88.
Septum highly variable; microsculpture made of longitudinal wavy striae, similar to the one of Caecum trachea; sculpture made of very thin growth lines; general appearance smooth; no ring-like thickening at the aperture. – Hoeksema & Segers: “On the systematics and distribution of the marine gastropod Caecum armoricum De Folin 1869”, Gloria Maris 31(6) 79-88.
