| Family: |
Melamphaidae (Bigscale fishes or ridgeheads) |
| Max. size: |
11.2 cm SL (male/unsexed) |
| Environment: |
bathypelagic; marine; depth range 0 - 8000 m |
| Distribution: |
Northern Pacific: from the Kuril and Japanese islands to the Gulf of Alaska. |
| Diagnosis: |
Dorsal spines (total): 3-3; Dorsal soft rays (total): 12-14; Anal spines: 1-1; Anal soft rays: 8-10; Vertebrae: 28-29. This species is distinguished by the following characters: with spinulated (without break) posterior and lower edges of praeoperculum; insertion of ventral fins is slightly anterior or level to the vertical of the posterior edge of pectoral fin insertion; upper jaw extends to the vertical of the posterior edge of the eye; dorsal fin with 12-14 soft rays, anal fin with 8-10; rakers on the first gill arch 27-30; vertebrae 28-29; pyloric caeca 7 (Ref. 83718). |
| Biology: |
Seined with non-closing fishing gear in the water horizon of 8000-0 m; and one catch was performed with a dip net near water surface (Ref. 83718). |
| IUCN Red List Status: |
Least Concern (LC); Date assessed: 30 December 2019 Ref. (130435)
|
| Threat to humans: |
harmless |
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