Pethia cumingii, known as the Cuming's barb or the two spot barb (though that name can also apply to the Ticto barb, P. ticto), is a species of cyprinid fish endemic to Sri Lanka. Its stocks have declined in recent decades, and in 1996 it was assessed to be in need of conservation to ensure it stays plentiful. However, this assessment may be outdated by now. == Introduction == Some authors have recently proved that the diversity of Ichthyofauna of the Southwest Ichthyological zone streams of Sri Lanka has a great significance in the...