Could it be one of the ancient gods of Semi Fish - Semi People
Dagon, Dagan - the most ancient gods of the Middle East and Mesopotamia
Dagon was West Semitic deity and he was honoured as a god - protector of farming (agriculture) and fisheries. According to the most widespread point of view, Dagon is Hebrew or Canaanitish (I millenary BC) form of the name of Dagan mentioned in Akkadian (Assirian-Babylonian) texts (III-I millenaries BC) and in the texts of Mari, Ebla and Ugarit, and also in personal names of Akkadian tsars (Iddin-Dagan, Ishme-Dagan, Sargon of Akkadian).