Graham's Gudgeon
Grahamichthys radiatus
- Usual depth1–24 m
- Water temperature12–18 °C
- Best monthsJuly, August, and September
- How commonRare
Photo credit: (c) Shaun, 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: 1 records
- February: 1 records
- March: 0 records
- April: 4 records
- May: 3 records
- June: 3 records
- July: 5 records
- August: 8 records
- September: 8 records
- October: 3 records
- November: 5 records
- December: 3 records
Depth and water temperature
Depth
Mostly recorded at 1–24 m · Deepest record: 23.5 m
Water temperature
Recorded in surface water of 12–18 °C
Photos
(c) Shaun, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Alison Ballance, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist 
(c) Luca Davenport-Thomas, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) naturewatchwidow, some rights reserved (CC BY) · CC BY · iNaturalist
Names and classification
- English
- Graham's Gudgeon
Other scientific names: Eleotris radiata, Grahamichthys radiata
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).
- 12 open-data records from 1964 to 1999.
- Species data updated November 3, 2026.
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