Genus Idarcturus Barnard, 1914

Type species.

Idarcturus platysoma Barnard, 1914, by monotype.

Diagnosis.

Body not or slightly geniculate, moderately flattened dorsoventrally in female, whereas cylindrical in male; pereonite IV longer than other pereonites, but not markedly elongate in both sexes, <2 × longer than pereonites II and III combined. Pereopod I carpus with serrated setae on inferior margin; propodus with serrated setae and comb setae on palmar surface and inferior margin; dactylus with comb setae distally; unguis lacking. Pereopods II-IV lacking flexion between carpus and propodus; dactylus claw-like. Pleopod I, exopod with fine setae subbasally or mesally.