Paramonacanthus japonicus (Tilesius, 1809)
Hairfinned leatherjacket
Paramonacanthus japonicus
photo by Randall, J.E.

 Family:  Monacanthidae (Filefishes)
 Max. size:  12 cm SL (male/unsexed)
 Environment:  reef-associated; depth range 34 - 46 m, oceanodromous
 Distribution:  Indo-West Pacific: southern Japan and northwest Australia to Papua New Guinea.
 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:   (Ref. 96402)
 Threat to humans:  harmless
 Country info:   
 

 Entered by: Capuli, Estelita Emily - 26.04.93
 Modified by: OrtaƱez, Auda Kareen - 06.06.06

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