Promethichthys prometheus

Osteichthyes Gempylidae Promethichthys prometheus
Singleline Gemfish PRP
55 cm TL
Characteristic features:
Colour:

Silvery black to black.

Size:

Up to 120 cm TL.

Distribution:

Circumglobal, in tropical and subtropical waters.

Habitat:

Mesopelagic and benthopelagic, from 100–750 m depth.

Biology:

Feeds primarily on fishes, squids and crustaceans.

Indonesian fisheries:

Unknown.

Similar species:

Nealotus tripes
Black snake mackerel

Nealotus tripes

Nealotus tripes differs in having lateral line almost straight (vs. lateral line curved abruptly downward anteriorly); 2 free anal-fin spines behind anus, the first large and dagger-shaped (vs. no free anal-fin spines) and 20–21 dorsal-fin spines (vs. 17–18).

to Nealotus tripes

Rexea spp.

Rexea bengalensis
Rexea bengalensis

Rexea spp. differ in having a double lateral line (vs. single).

to Rexea spp.
External links:

FishBase
The IUCN Red List of Threatened SpeciesTM