The northern zodiacal constellations are in the eastern celestial hemisphere and the southern are in the west, the sun and the ecliptic also pass through the constellation Ophiuchus which doesn’t have a zodiac sign.
Dagon was represented as half man, half fish. The upper part human, the lower part fish. It reminded me of the Greek god Poseidon. Notice the the character to the left of the tree of life (above)and the costume he has on.