(Κελαινώ), a Pleiad, daughter of Atlas and Pleione, and by Poseidon the mother of Lycus and Eurypylus, or, according to others, of Lycus and Chimaereus by Prometheus. (Apollod. 3.10.1; Ov. Ep. 19.135; Schol. ad Apollon. Rhod. 4.1561; Tzetz. ad Lycoph 132.)

There are several other mythological beings of this name : namely, a Harpy (Verg. A. 3.211), a daughter of Ergeus (Hyg. Fab. 157), a daughter of Hyamus (Paus. 10.6.2), a Danaid (Strab. xii. p.579; Apollod. 2.1.5), and an Amazon. (Diod. 4.16.)