Fin's Fish Guide
The Cryptic filefish (Paramonacanthus japonicus) is a saltwater fish of the family Monacanthidae that grows up to 12 cm.
Description
The hairfinned filefish is a filefish (Monacanthidae) from the northwestern Pacific. The species has a strongly laterally compressed body with a rough, sandpaper-like skin and an erectile first dorsal fin spine that it can lock upright. It inhabits weedy and sandy parts of coastal reefs and open mud bottoms. As an omnivore it picks small bottom invertebrates, algae and detritus. The species is harmless to humans.
Frequently asked questions
How do you recognise the Cryptic filefish?
The Cryptic filefish has a flattened, disc-shaped body, is mainly brown and shows a marbled pattern. Sandpaper-like skin and a lockable first dorsal fin spine; filefish of coastal reefs.
Where does the Cryptic filefish live?
The Cryptic filefish lives in the sea (marine waters) and is mostly found around stony or rocky ground. Northwest Pacific; vegetated and sandy coastal areas.
How big does the Cryptic filefish get?
The Cryptic filefish grows to a maximum of about 12 cm.
Is the Cryptic filefish dangerous to humans?
No, the Cryptic filefish is harmless to humans. None required: this species is harmless to humans.
Is the Cryptic filefish edible?
The Cryptic filefish is rarely eaten.
More photos
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Paramonacanthus
More from the family Monacanthidae
Want the complete picture on the Cryptic filefish?
Point your camera at the fish and Fin names the species in seconds. Free, and the Cryptic filefish is one of 12,519 species in the app.