Marine; benthopelagic; oceanodromous ; depth range 80 - 800 m , usually 300 - 400 m . Subtropical; 50°N - 36°S, 180°W - 180°E

Maturity: Lm 47.4  range ? - ? cm Max length : 100.0 cm SL male/unsexed; ; common length : 40.0 cm SL male/unsexed;

Dorsal spines (total): 18 - 20; Dorsal soft rays (total): 17 - 20; Anal spines: 2 - 3; Anal soft rays: 15 - 17. Body moderately elongate. Mouth with fang-like teeth. Spinescent gill rakers on the first arch with 1 - 3 cusps and many small spines; the angular raker long and triple-rooted. Body entirely scaled at over 20 - 25 cm SL. Pyloric caeca 7 or 8. Color is grayish to copper brown; fins blackish at over 40 cm SL, yellowish with black tips in smaller specimens (the first dorsal fin with a black blotch on two anteriormost membranes); the buccal and branchial cavities are black. Pelvic fin reduced to one spine that becomes entirely absent in specimens more than 40 cm SL. Body shape (shape guide): elongated;  Cross section: compressed.