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Melamphaes xestoachidus Kotlyar, 2011 |
| Family: | Melamphaidae (Bigscale fishes or ridgeheads) | |||
| Max. size: | 8.7 cm SL (male/unsexed) | |||
| Environment: | bathypelagic; marine; depth range 2400 - 3450 m | |||
| Distribution: | Northwestern Pacific Ocean, eastwards of the Kurils Islands. | |||
| Diagnosis: | The species is characterized by 22–23 rakers on the first gill arch, 30 vertebrae (12 abdominal vertebrae), the haemal arch of the first caudal vertebra is without a spur; D III 14–15; P 16; seven soft rays in the ventral fin; ventral fin starts from the vertical line of the posterior margin of the pectoral fin basement; the anal fin starts from the vertical line of the last ray of the dorsal fin; eight scales are on the operculum (Ref. 87971). | |||
| Biology: | ||||
| IUCN Red List Status: | Data deficient (DD); Date assessed: 30 December 2019 Ref. (130435) | |||
| Threat to humans: | harmless | |||