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Poromitra nigriceps (Zugmayer, 1911) |
| Family: | Melamphaidae (Bigscale fishes or ridgeheads) | |||
| Max. size: | 13.53 cm SL (male/unsexed) | |||
| Environment: | bathypelagic; marine | |||
| Distribution: | Northern Atlantic Ocean, from Greenland to the Azores. | |||
| Diagnosis: | Dorsal spines (total): 3-3; Dorsal soft rays (total): 13-13; Anal spines: 1-1; Anal soft rays: 9-10; Vertebrae: 27-28. The species is distinguished by the following characters: spined posterior and lower margins of the praeoperculum, in the angular part of it is an unspined notch; insertion of the ventral fins is in front of the vertical of the posterior margin of the pectoral fin insertion; upper jaw extends beyond the vertical of the posterior eye margin; soft rays in dorsal fin 13, in anal fin 9-10; first branchial arch with 31-33 rakers; vertebrae 27-28; pyloric caeca 8 (Ref. 83719). | |||
| Biology: | Specimens were seined with non-closing fishing gear in the range of depths 3000-0 m and with bottom fishing gear is seined at 1640-2000 m (Ref. 83719). | |||
| IUCN Red List Status: | Least Concern (LC); Date assessed: 09 October 2018 Ref. (130435) | |||
| Threat to humans: | harmless | |||