New distribution record of the weakly electric fish Steatogenys ocellatus Crampton, Thorsen & Albert 2004, in the Putumayo River, upper Amazon river basin, Colombia

The natural distribution of Steatogenys ocellatus Crampton, Thorsen & Albert 2004, is expanded here with a specimen collected near Puerto Leguízamo (Colombia) in the Río Putumayo at the Colombian–Peruvian border. This record, the first for this species in Colombia, expands its geographical distribution within the Amazon basin to a new watershed. Furthermore, this is the first time S. ocellatus has been recorded in a white water system