...named Black. The Phigalians accept the account of the people of Thelpusa about the mating of Poseidon and Demeter, but they assert that Demeter gave birth, not to a horse, but to the Mistress, as the Arcadia ns call her. Afterwards, they say, angry with Poseidon and grieved at the rape of Persephone, she put on black apparel and shut herself up in this cavern for a long time. But when all the fruits of t...