There are about 40 species of fish in the lake and the streams of the Periyar Tiger Reserve. Notable among them is the endangered game fish, Mahseer. Among the many endemic species here are the Periyar Trout, the Periyar Lattia, the Periyar Barb, the Channa Barb, the Curcuma Barb and the Travancore Loach.
Butterflies and Moths | Invertebrates |