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Penopus japonicus Nielsen & Ohashi, 2011 |
| Family: | Ophidiidae (Cusk-eels), subfamily: Neobythitinae | |||
| Max. size: | 22.9 cm SL (male/unsexed) | |||
| Environment: | benthopelagic; marine; depth range - 3924 m | |||
| Distribution: | Northwest Pacific: Ryukyus, Japan. | |||
| Diagnosis: | Dorsal soft rays (total): 117-117; Anal soft rays: 89-89; Vertebrae: 75-75. This species is distinguished from the Atlantic species by having fewer rays in the dorsal 117 (vs. 135-158) and anal 89 (vs. 106-122) fins; head squamation restricted to the middle part of the preopercle (vs. head almost fully scaled - over the dorsum, preopercle and the opercle in part); a distinct spine behind the posterior nostril (vs. spine hardly visible); 9 spines on the hind margin of the preopercle (vs. 4-7 spines) (Ref. 87601). | |||
| Biology: | ||||
| IUCN Red List Status: | Data deficient (DD); Date assessed: 16 August 2019 Ref. (130435) | |||
| Threat to humans: | harmless | |||