Toxeus. In Greek mythology, the name Toxeus or Toxius refers to the following individuals: Toxius, son of Caelus who was the inventor of building with clay, it having been suggested to him from swallows' nests. Toxeus, a Pleuronian prince as the son of King Thestius and thus, brother of Althaea. He participated in the hunt for the Calydonian Boar but was angry that the prize of the boar's hide had been given to a woman by his nephew Meleager, who then killed him in the ensuing argument. Toxeus, a Calydonian prince as the son of King Oeneus and Althaea. He was the brother of Meleager, Clymenus, Periphas, Agelaus, Thyreus, Deianeira, Gorge, Eurymede and Melanippe. Toxeus was killed by his father for over leaping the trench which had been dug around Calydon. Toxeus, a Oeachalian prince as son of King Eurytus and Antiope or Antioche and brother of Clytius and Molion. All three were slain by Heracles. His other siblings were Iole, Deioneus, Didaeon and Iphitos.