catraia3The Catraia are small capacity inboard engine boats used for people transport in the Amazon region where the traffic of these boats is so intense as to city buses. Despite its resemblance to the Lancha from the Amazon, it does not have covered side walls, although it also has top covers. It is very similar to the Chalana from the Pantanal region.

In several ports in  Brazil the Catraias transport people around port channels as taxis.