ARACHNAEUM(τὸ Ἀραχναῖον ὄρος), a mountain in Peloponnesus, forming the boundary between the territories of Corinth and Epidaurus. (Paus. 2.25.10; Steph. B. s. v.;Hesych. s. v. ὑσσέλινον;Leake, Morea, vol. 2. p. 417, seq., vol. 3. p. 312.)