Carapace cylindrical, without hepatic and supraorbital spines; anterolateral angle of carapace obtuse; cervical groove shallow and indistinct on upper part; a distinct ridge across upper part of branchial region to posterior margin of carapace; a narrow, but deep groove traversing posterior one-third of dorsal surface of carapace. Rostrum narrow and sharp and directed obliquely upward, being constricted at distal one-third. Eyestalk widening, with large cornea. Antennal scale with some granular luminescent organs, reaching about proximal one-third of third antennal segment. Third maxilliped and first to third pereiopods slender, while fourth and fifth pereiopods flattened and fringed with long hairs on posterior borders.
Distribution:
Previously known from the West Atlantic from the Gulf of Mexico to the Antilles, and the East Atlantic from south of Iceland through the Mediterranean Sea to South Africa, 200-5,000 m deep.