Glaucus later fell in love with the Italian maiden Scylla, who rejected him due to his piscine form. He consulted with Circe for a solution but she became passionately in love with him herself. Since Glaucus cared only for Scylla, however, Circe turned her into a fishlike monster from the waist down, with a row of vicious dog's heads round her loins. She went to live alone in a submerged cave on the [Straits of Messina]?, but Glaucus remained in love with her and mourned her transformation.
Euripides wrote in his play Orestes that Glaucus was a son of Nerus? and says that he assisted Menelaus? on his homeward journey with good advice. He also helped the Argonauts?. It was believed that he commonly came to the rescue of sailors in storms, having once been one himself.