
Black fin eel
Anguilla bicolor
- Usual depth0–146 m
- Water temperature19–30 °C
- Best monthsOctober
- How commonOccasional
Photo credit: (c) Ken Puliafico, some rights reserved (CC BY) · CC BY · iNaturalist
About this species
Anguilla bicolor is a species of eel in the genus Anguilla of the family Anguillidae, consisting of two subspecies.
Text from the Wikipedia article “Anguilla bicolor”, 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: 4 records
- February: 5 records
- March: 10 records
- April: 11 records
- May: 13 records
- June: 11 records
- July: 16 records
- August: 13 records
- September: 11 records
- October: 28 records
- November: 12 records
- December: 4 records
Depth and water temperature
Depth
Mostly recorded at 0–146 m · Deepest record: 287 m
Water temperature
Recorded in surface water of 19–30 °C
Photos

no rights reserved · CC0 1.0 · iNaturalist
Names and classification
- English
- Black fin eel, Indian Shortfin Eel, Indonesian Shortfin eel, level-finned eel, Plain Short-finned Eel, Shortfin Eel, short-finned eel
Names in 6 more languages
- Spanish
- Anguila Bicolor, anguila de aleta corta
- French
- Anguille à nageoire courte, Anguille bicolore
- Indonesian
- Sidat anjing
- Japanese
- ニューギニアウナギ, バイカラウナギ
- Thai
- ปลาตูหนา, ปลาไหลหูดำ
- Simplified Chinese
- 雙色鰻鱺
Other scientific names: Anguilla amblodon, Anguilla bicolour, Anguilla bleekeri, Anguilla cantori, Anguilla dussumieri, Anguilla malabarica, Anguilla moa, Anguilla mowa, Anguilla pacifica, Anguilla sidat, Anguilla spengeli, Anguilla virescens, Muraena halmaherensis, Muraena macrocephala, Muraena moa, Muraena virescens
Similar species
Giant mottled eelAnguilla marmorata
- Celebes Longfin Eel
Anguilla celebesensis
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).
- 796 open-data records from 1844 to 2024.
- Species data updated October 26, 2026.
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