Author: Keith, Marquet & Watson, 2008
FBname: Futuna's emperor
Comments: Occurs in swift clear streams with rocky bottom; collected at an altitude of 147 m.  Observed to swim in open water and are not always on the bottom of the river.  Although feeding habits have not been studied, a few examined specimens apparently feed on aquatic insects and crustaceans (Atyidae) (ref. 75883).