Genus Aruga Holmes, 1908

Diagnosis.

Antenna 1 with strong callynophore in male and female. Antenna 2 flagellum elongate in male. Epistome not produced; upper lip produced. Maxilla 2 inner plate narrow. Gnathopod 1 simple. Gnathopod 2 minutely chelate. Uropod 2 inner ramus with dorsal notch, gradually narrowing distally. Uropod 3 outer ramus 2 - articulate. Telson entire.