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Paramonacanthus japonicus (Tilesius, 1809) Hairfinned leatherjacket |
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photo by
Randall, J.E. |
| Family: | Monacanthidae (Filefishes) | |||
| Max. size: | 12 cm SL (male/unsexed) | |||
| Environment: | reef-associated; marine; depth range 34 - 46 m, oceanodromous | |||
| Distribution: | Northwestern Pacific: confirmed from Japan. | |||
| Diagnosis: | Dorsal spines (total): 2-2; Dorsal soft rays (total): 24-30; Anal spines: 0-0; Anal soft rays: 24-30; Vertebrae: 19-19. body width 2.0-2.6 in head length; body depth 2.0-3.1 in SL, head length 2.7-3.2 in SL; snout length 3.7-4.1 in SL; eye diameter 2.7-3.7 in head length; second dorsalmost caudal ray elongate and filamentous in male (Ref. 33065). | |||
| Biology: | Inhabits weedy and sandy areas of coastal reefs (Ref. 9710). Found on open muddy substrates from shallow estuaries to deep offshore. Males elongate with age (Ref. 48637). Monogamous (Ref. 52884). | |||
| IUCN Red List Status: | Least Concern (LC); Date assessed: 03 March 2015 Ref. (130435) | |||
| Threat to humans: | harmless | |||