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Holtbyrnia melanocephala (Vaillant, 1888) |
| Family: | Platytroctidae (Tubeshoulders) | |||
| Max. size: | ||||
| Environment: | benthopelagic; marine; depth range 1435 - 2500 m | |||
| Distribution: | Eastern Atlantic: Morocco and Portugal. | |||
| Diagnosis: | ||||
| Biology: | ||||
| IUCN Red List Status: | Not Evaluated (N.E.) Ref. (130435) | |||
| Threat to humans: | harmless | |||