A daughter of Achelous, Oebalus or Asopus and Methone, became by Poseidon the mother of Leches and Cenchrias (Paus. ii. 2. § 3; Diod. iv. 74). She was regarded as the nymph of the well Peirene near Corinth. which was believed by some to have arisen out of the tears which she shed in her grief at the death of her son Cenchrias. (Paus. ii. 3. § 5.).