Borostomias mononema

Author: Regan and Trewavas, 1929

Borostomias mononema Regan and Trewavas, 1929

Status in World Register of Marine Species:
Accepted name: Borostomias mononema (Regan and Trewavas, 1929) (updated 2009-06-25)

Diagnosis: row of photophores beginning above anal fin and ending on tail (AC) curved upward behind anal fin base; serial photophores in lateral row (OA) 43-49, usually 46 or more, of which 21-25 behind pelvic fin insertion (VAL); 66-72 (usually 70 or more) photophores in ventral series to tail (IC). Fangs in upper and lower jaws not much longer than other teeth, curved. Barbel tip with a bulbous black proximal part and a less wide, pale distal part, usually bearing one filament, sometimes two, and not becoming more than about twice as long as wide; pale postorbital luminous organ double, with small anterior and larger posterior parts. Colour: head and body black. Size: to more than 300 mm SL.

Habitat, etc.: see family.

Distribution: reaching to just north of Madeira from the south. Elsewhere. tropical western Atlantic west of 60° W. eastern Atlantic east of 30° W, Indian and Pacific oceans.

Eggs, larvae and young stages. None known.
Otoliths (sagitta). No data.