Fourline Blenny
Ecsenius aequalis
- Usual depth4–18 m
- Water temperature25–29 °C
- Best monthsJanuary, February, and November
- How commonRare
Photo credit: (c) Andrew Parker, some rights reserved (CC BY), uploaded by Andrew Parker · CC BY · iNaturalist
About this species
Ecsenius aequalis, a fish known commonly as the fourline blenny, is a species of combtooth blenny found in coral reefs in the western Pacific Ocean. It is grey or light brown in color, with four think black stripes or dotted lines along its body, including a line along the base of the dorsal fin. Other names for Ecsenius aequalis are fourline combtooth blenny and fourline coral blenny.
Text from the Wikipedia article “Ecsenius aequalis”, licensed CC BY-SA 4.0. Read the article
Where and when
Where it has been recorded
Worldwide
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Best months
Worldwide (open data)
- January: 8 records
- February: 7 records
- March: 4 records
- April: 0 records
- May: 0 records
- June: 1 records
- July: 2 records
- August: 2 records
- September: 0 records
- October: 7 records
- November: 8 records
- December: 3 records
Depth and water temperature
Depth
Mostly recorded at 4–18 m · Deepest record: 17.5 m
Water temperature
Recorded in surface water of 25–29 °C
Photos
(c) Andrew Parker, some rights reserved (CC BY) · CC BY · iNaturalist
Names and classification
- English
- Fourline Blenny
Similar species
Bicolor BlennyEcsenius bicolor
Great Barrier Reef BlennyEcsenius stictus
Coral BlennyEcsenius yaeyamaensis
Aron's blennyEcsenius aroni
Australian BlennyEcsenius australianus
Axelrod's Clown BlennyEcsenius axelrodi
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).
- 139 open-data records from 1975 to 2001.
- Species data updated November 2, 2026.
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