Described by Hedley as Lucina induta:
Shell minute, very thin, brittle, glossy, white, concealed beneath a thick hard brown mass which cakes, cracks and splits off when dry. In shape subcordate, rounded anteriorly, subangled posteriorly, beaks prominent incurved. Lunule absent. Sculpture, irregular concentric undulations and striations. No muscle scars visible. Hinge, the valve margin is produced under the umbo to simulate a cardinal tooth, the ligament occupies a narrow groove. Length, 3; height, 2,65 mm. Several complete specimens, from 800 fathoms. As usual with thin shells the muscle scars are invisible, indeed so few salient characters are presented that the systematic position of the species is uncertain.

Tasman Sea