Blackhead Threefin
Enneapterygius larsonae
- Usual depth0–8 m
- Water temperature20–29 °C
- Best monthsJanuary, September, and December
- How commonRare
Photo credit: (c) Belinda Forbes, some rights reserved (CC BY) · CC BY · iNaturalist
About this species
Enneapterygius larsonae, known commonly as the Western Australian black-head triplefin, is a species of triplefin blenny in the genus Enneapterygius. It was described by the German ichthyologist Ronald Fricke in 1994. The specific name honours Helen K. Larson, the Curator of Fishes at the Museum and Art Gallery of the Northern Territory in Darwin, Australia, who collected the type.
Text from the Wikipedia article “Enneapterygius larsonae”, licensed CC BY-SA 4.0. Read the article
Where and when
Where it has been recorded
Worldwide
Loading the map
Best months
Worldwide (open data)
- January: 19 records
- February: 11 records
- March: 10 records
- April: 9 records
- May: 8 records
- June: 5 records
- July: 7 records
- August: 7 records
- September: 21 records
- October: 13 records
- November: 10 records
- December: 22 records
Depth and water temperature
Depth
Mostly recorded at 0–8 m · Deepest record: 15 m
Water temperature
Recorded in surface water of 20–29 °C
Photos
(c) Debra Baker, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Belinda Forbes, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Debra Baker, some rights reserved (CC BY) · CC BY · iNaturalist 
no rights reserved · CC0 1.0 · iNaturalist
Names and classification
- English
- Blackhead Threefin, Western Australian Black-head Triplefin
Similar species
Blackthroat TriplefinEnneapterygius atrogulare
Black-cheek ThreefinEnneapterygius rufopileus
Highfin ThreefinEnneapterygius tutuilae
Yellow triplefinEnneapterygius abeli
Hawaiian Blackhead TriplefinEnneapterygius atriceps
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.
- Descriptions: Wikipedia, licensed CC BY-SA, each linked to its article.
- Conservation status as published by GBIF (IUCN Red List).
- 100 open-data records from 1957 to 2010.
- Species data updated November 2, 2026.
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