Pungwe basin

The bluefin nothobranch, Nothobranchius rachovii, is a killifish of seasonal pools and swamps in eastern Mozambique. Its habitats dry out for several months each year and the adults die, while the eggs survive in the substrate and hatch when the rains return. Northern and southern populations once included in it are now described as N. krysanovi and N. pienaari, and N. rachovii sensu stricto is restricted to the lower Pungwe and Zambezi basins.