Dusky Filefish

Paramonacanthus otisensis

Fish
IUCN: Least concern

Usual depth16–62 m
Water temperature20–29 °C
Best monthsFebruary, May, and September
How commonOccasional

All species

Where and when

Where it has been recorded

Worldwide

Loading the map

Best months

Worldwide (open data)

January: 38 records
February: 71 records
March: 27 records
April: 30 records
May: 63 records
June: 20 records
July: 28 records
August: 27 records
September: 74 records
October: 35 records
November: 58 records
December: 28 records

Depth and water temperature

Depth

Mostly recorded at 16–62 m · Deepest record: 81 m

0–10 m: 2 records
10–20 m: 100 records
20–30 m: 107 records
30–40 m: 64 records
40–50 m: 18 records
50–60 m: 32 records
60–70 m: 27 records
70–80 m: 27 records
80–90 m: 2 records

Water temperature

Recorded in surface water of 20–29 °C

18–20 °C: 3 records
20–22 °C: 52 records
22–24 °C: 252 records
24–26 °C: 102 records
26–28 °C: 114 records
28–30 °C: 1 records

Names and classification

English: Dusky Filefish, Dusky Leatherjacket, Horse-face Leather-jacket

Other scientific names: Arotrolepis barbarae

Similar species

Hair-finned Leatherjacket
Paramonacanthus choirocephalus
Hair-finned Filefish
Paramonacanthus oblongus
Paramonacanthus curtorhynchos
Hairfinned leatherjacket
Paramonacanthus japonicus
Paramonacanthus cryptodon
wedgetail filefish
Paramonacanthus frenatus

Sources and credits

Names and taxonomy: WoRMS (CC BY 4.0) and the GBIF Backbone (CC BY 4.0). Photos: iNaturalist observers, each under the licence shown (CC0, CC BY or CC BY-SA).

Depth, temperature, months and maps: records from OBIS and GBIF under CC0 or CC BY.
Conservation status as published by GBIF (IUCN Red List).
616 open-data records from 1910 to 2009.
Species data updated November 5, 2026.

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