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Fissidentalium metivieri, 800 m,  off Tulear, Madagascar, thick, rather heavy shell, with brown and black incrustations, anterior part of shell, total dimensions 144,8 x20,1 mm

Fissidentalium metivieri, 800 m, off Tulear, Madagascar, thick, rather heavy shell, with brown and black incrustations, total dimensions 154,5 x19,7 mm, long slit

Fissidentalium metivieri, 600-800 m, Madagascar, various shell varitions, with breaks or borehole