Phorcys- Greek myth: a primordial sea-god, son of Pontus and Gaia. he was depicted as a fish-tailed merman with crab-claw fore-legs and red-spiked skin. his wife was Keto with which he fathered the gorgons, the Graeae, Ladon, and Echidna.
Ceto, goddess of the dangers of the ocean and of sea monsters. The flower of the rivers by SARYTH (deviantART)- Pinned by The Mystic's Emporium on Easy goddess Ceto, believed to be the mother of Medusa