Brown Flounder
Arnoglossus aspilos
- Usual depth7–33 m
- Water temperature23–29 °C
- Best monthsJuly, September, and December
- How commonRare
Where and when
Where it has been recorded
Worldwide
Loading the map
Best months
Worldwide (open data)
- January: 1 records
- February: 2 records
- March: 2 records
- April: 1 records
- May: 3 records
- June: 1 records
- July: 5 records
- August: 3 records
- September: 5 records
- October: 5 records
- November: 1 records
- December: 7 records
Depth and water temperature
Depth
Mostly recorded at 7–33 m · Deepest record: 50 m
Water temperature
Recorded in surface water of 23–29 °C
Names and classification
- English
- Brown Flounder, Spotless Lefteye Flounder
Other scientific names: Arnoglossus aspilus, Bothus aspilus, Rhombus aspilos
Similar species
- Imperial scaldfish
Arnoglossus imperialis
- Megrim
Arnoglossus scapha
- Waite’s Flounder
Arnoglossus waitei
- Bass Strait Flounder
Arnoglossus bassensis
- Brown Lefteye Flounder
Arnoglossus brunneus
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).
- 53 open-data records from 1909 to 2009.
- Species data updated October 26, 2026.
Log what you see on your next dive
The free DiveHive diver app keeps your logbook with every sighting and shows what lives at the site you dive next.