In the eastward flowing rivers of Tanzania, we find the dominant ATF is the tanzaniae, which is, genetically, very closely related to the vittatus complex. They are directly descended from the vittatus complex via allopatric speciation. They went on to fill the same ecological niche as the Goliaths fill in the westward flowing rivers. Basically, the tatf is a vittatus that is trying its best to be a Goliath. lol Also in the eastward flowing rivers is the brevis, which is being supressed by the tanzaniae. In these rivers, the brevis fills the same ecological niche as the tanzaniae and doesn't get as big as it does in the rest of its range....
Should read "brevis fills the same ecological niche as the vittatus do in the Congo"...
Ooops. lol