What does "midas" mean?

Midas: A genus of longeared South American monkeys, including numerous species of marmosets. See Marmoset. MIDAS'S EAR Mi"das's ear". Etym: [See Midas.] (Zoöl.) A pulmonate mollusk (Auricula, or Ellobium, aurismidæ); -- so called from resemblance to a human ear.

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