Six species are known from northeastern Brazilian coastal river basins: A. rochai from rivers around Fortaleza, A. raimundi from the Parnaíba River, A. carvalhoi from rivers around Guaramiranga, Ceará State, A. maculosus from the Itapicuru River, A. menezesi from the Jaguaribe River, and A. spilotus from the Acaráu River.
Fernando de Mendonça (born December 2, 1924 in Guaramiranga, Ceará) is a Brazilian electronic engineer and researcher, founder and first director of Brazil's National Institute for Space Research.