Black Cap Jawfish
Opistognathus randalli
- Usual depth14–31 m
- Water temperature28–28 °C
- Best monthsJanuary, April, and May
- How commonRare
Photo credit: (c) Alicia Christman, some rights reserved (CC BY) · CC BY · iNaturalist
Where and when
Where it has been recorded
Worldwide
Loading the map
Best months
Worldwide (open data)
- January: 20 records
- February: 7 records
- March: 16 records
- April: 30 records
- May: 30 records
- June: 16 records
- July: 10 records
- August: 13 records
- September: 11 records
- October: 19 records
- November: 10 records
- December: 20 records
Depth and water temperature
Depth
Mostly recorded at 14–31 m · Deepest record: 39.6 m
Water temperature
Recorded in surface water of 28–28 °C
Photos
(c) Georgina Jones, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist 
(c) portioid, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Ben Costamagna, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Ben Costamagna, some rights reserved (CC BY) · CC BY · iNaturalist
Names and classification
- English
- Black Cap Jawfish, Gold-specs Jawfish, Goldspecs Jawfish, Randall's Jawfish, Yellowbarred Jawfish
Similar species
- Abrolhos Jawfish
Opistognathus alleni
- Castelnau's Jawfish
Opistognathus castelnaui
- Dendritic Jawfish
Opistognathus dendriticus
- Solor Jawfish
Opistognathus solorensis
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).
- 69 open-data records from 1986 to 2016.
- Species data updated October 26, 2026.
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