Theonoe
Θεονόη
(Θεονόη).
1. A daughter of Proteus and Psammathe, who is said to have been in love with Canobus, the helmsman of Menelaus, who died in Egypt, in consequence of the bite of a snake. She is also called Eido or Eidothea. (Eurip. Helen. 11; Aristoph. Thesm. 897; Plat. Cratyl. p. 407; Hom. Od. 4.363.)
From William Smith (ed.), Dictionary of Greek and Roman Biography and Mythology. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.