POSI´DIUM or POSEI´DIUM(Ποσείδιον), the name of several promontories sacred to Poseidon. I. In Europe.
1. A promontory on the coast of Lucania, opposite to the little island of Leucosia, from which it is still called Punta della Licosa. [LEUCOSIA]
2. The SW. cape of Pallene in Macedonia, also called Poseidonium. [POSEIDONIUM]
3. A promontory in Chaonia in Epeirus, between Onchesmus and Buthrotum, opposite the NE. of Corcyra. (Strab. 7. p. 324; Ptol. 3.14.4; Leake, Northern Greece, vol. 1. p. 92.)
4. A promontory in Thessaly, in the district Phthiotis, described by Strabo as lying between the Maliac and Pagasaean gulfs, is the promontory closing the Pagasaean gulf on the S. It is called Zelasium by Livy, now C. Stavros(Strab. 7. p. 330, Fr. 32; Ptol. 3.13.17; Liv. 31.46; Leake, Northern Greece, vol. 4. p. 351).