[[ Moema Costa ^ZBK ]]

Moema ^ZBK comprises ten nominal species, of which M. heterostigma Costa ^ZBK is endemic to the Brazilian Pantanal, Rio Paraguay basin (Costa, 2003d), and nine species are known from the Amazon: M. piriana Costa ^ZBK, the type species of the genus, from the coastal plains adjacent to Rio Amazonas estuary, Brazil, M. staecki (Seegers) from the central Amazon, Brazil, M. portugali Costa ^ZBK and M. nudifrontata ^ZBK from the Rio Branco basin, northern Amazon, Brazil, M. hellneri Costa ^ZBK from the Rio Napo basin, western Amazon, Peru, and M. pepotei Costa ^ZBK, M. ortegai Costa ^ZBK, and M. quiii Huber ^ZBK, from the Madre de Dios-Beni-Mamore-Madeira river system in Peru, Brazil and Bolivia, southern Amazon (Costa, 1989, 1992, 2003a,b; Huber, 2003). Moema ortegai ^ZBK and M. quiii ^ZBK were described from the same locality (Tambopata, Río Madre de Dios drainage, Peru) and are morphologically identical, therefore considered synonyms. The name Moema ortegai ^ZBK, published in 24 November 2003 (Costa, 2003b), has priority over the name Moema quiii ^ZBK, published in December 2003 (Huber, 2003).