Author: Regan and Trewavas, 1930
Eustomias simplex Regan and Trewavas, 1930
Status in World Register of Marine Species:
Accepted name: Eustomias simplex Regan and Trewavas, 1930 (updated 2009-06-25)
Diagnosis: barbel increasing with growth from less than 1/2 to a maximum of just under 3/4 of SL, its stem unpigmented except for a row of small, black dots, without branches; terminal bulb ovoid or pear-shaped to about four times as long as wide, with or without a slender, short terminal filament. Pectoral finrays 3; pelvic finrays 7. Photophores of lateral row evenly spaced, not in pairs, 28-30 in ventral row between pectoral and pelvic fin insertions (PV). Colour: head and body black; no round, white spots on sides. Size: to about 22.5 cm.
Habitat, etc.: see family.
Distribution: south of Madeira. Elsewhere, across the North Atlantic between 20° and 37° N; south-western Atlantic between 5° and 21° recorded from Indian and Pacific Oceans.