Adults, benthopelagic to mesopelagic, dwell on the continental slope or underwater rises, migrating to midwater at night . Eggs are pelagic . Larvae and juveniles, epipelagic to mesopelagic, are rather common in oceanic ichthyoplankton and are only found in the tropics . Feed on squid, fish and crustaceans . Consumed as food .
Dorsal spines (total): 20 - 22; Dorsal soft rays (total): 19 - 24; Anal spines: 2; Anal soft rays: 18 - 21; Vertebrae: 34 - 36. Body fairly elongate and strongly compressed. Mouth with fang-like teeth. The tips of both jaws with dermal processes. Gill rakers degenerated. Color is dark brown with violet tint; fin membranes black; margin of anus black .: elongated; Cross section: compressed.
Behavioural data for Black gemfish is currently being reviewed.
Marine; benthopelagic; depth range 200 - 1200 m . Deep-water; 70°N - 47°S, 180°W - 180°E distributed worldwide in tropical and subtropical seas except in eastern Pacific and northern Indian oceans.
squid, fish and crustaceans (Ref
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 24 records indexed .
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