(Boeck, 1871)
Length about 7 mm. Rostrum absent. Head with rounded lateral lobes, large quadrate white eye spots. Accessory flagellum of ANT I as long as ART 1 of main flagellum. Ventral margin of CX IV almost straight, posteroventral corner rounded. Posterior margin of ART 2 of P V and VI serrate. Epimeral plate III with a smooth prolonged posterior edge; posteroventral corner angular, not produced. Telson with quadrate proximal, triangular distal parts, smooth, without setae. Bentho-pelagic.