Noun genus tethus has 1 sense
  1. Aplysia, genus Aplysia, Tethys, genus Tethus - type genus of the family Aplysiidae
    --1 is a kind of mollusk genus
    --1 is a member of Aplysiidae, family Aplysiidae, Tethyidae, family Tethyidae
    --1 has members: sea hare, Aplysia punctata
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