lithocyst
Lith"o*cyst, n. Etym: [Litho- + cyst.] (Zoöl.) Defn: A sac containing small, calcareous concretions (otoliths). They are found in many Medusæ, and other invertebrates, and are supposed to be auditory organs.
Lith"o*cyst, n. Etym: [Litho- + cyst.] (Zoöl.) Defn: A sac containing small, calcareous concretions (otoliths). They are found in many Medusæ, and other invertebrates, and are supposed to be auditory organs.