Blackline blenny
Meiacanthus nigrolineatus
- Usual depth3–18 m
- Water temperature27–30 °C
- Best monthsApril, August, and October
- How commonRare
Photo credit: (c) Tom Heijnen, some rights reserved (CC BY) · CC BY · iNaturalist
About this species
Meiacanthus nigrolineatus, the blackline fangblenny, is a blenny from the Western Indian Ocean. This species grows to a length of 9.5 centimetres (3.7 in) TL. This venomous species occasionally makes its way into the aquarium trade.
Text from the Wikipedia article “Meiacanthus nigrolineatus”, 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: 4 records
- February: 6 records
- March: 9 records
- April: 11 records
- May: 8 records
- June: 7 records
- July: 7 records
- August: 11 records
- September: 6 records
- October: 11 records
- November: 4 records
- December: 9 records
Depth and water temperature
Depth
Mostly recorded at 3–18 m · Deepest record: 18 m
Water temperature
Recorded in surface water of 27–30 °C
Photos
(c) Tom Heijnen, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Jan Ebr & Ivana Ebrová, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) agujaceratops, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Georgina Jones, some rights reserved (CC BY-SA) · CC BY-SA · iNaturalist 
(c) Julien Renoult, some rights reserved (CC BY) · CC BY · iNaturalist 
(c) Jan Ebr & Ivana Ebrová, some rights reserved (CC BY) · CC BY · iNaturalist
Names and classification
- English
- Blackline blenny, blackline blenny, Blackline Fangblenny
Names in 1 more languages
- Spanish
- Blenio Dientón de Línea Negra
Similar species
Eyelash FangblennyMeiacanthus atrodorsalis
Black-banded BlennyMeiacanthus grammistes
- Green Canary Blenny
Meiacanthus tongaensis
Bundoon BlennyMeiacanthus bundoon
Doublepore FangblennyMeiacanthus ditrema
Kamohara BlennyMeiacanthus kamoharai
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).
- 62 open-data records from 1969 to 2014.
- Species data updated November 4, 2026.
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