from The Century Dictionary and Cyclopedia

  • n. The typical genus of sea-urchins of the family Cassidulidæ. Also Cassidulus; Lamarck, 1816.
  • n. In conchology, a genus of basommatophorous pulmonate gastropods, of the family Auriculidæ, having a squarish body-whorl, very short spire, and toothed lips. The species inhabit the sea-shores of the Indo-Pacific region. Also Cassidulus; Latreille, 1825.


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