The susu, although said to be Fulah, are certainly Mandingo.
The long snout of the susu has been compared to the long snout of the Gharial, a native of the same region.
There is apparently but one species, P. gangetica, the "susu."
Binger states that the manati was the totem of the Mande group, to which perhaps belonged originally the susu and the Dyula.
The gold collected at Achin comes partly from the mountains in the neighbourhood but chiefly from Nalabu and susu.