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Allen's Blenny

Ecsenius alleni

  • Fish
  • IUCN: Least concern
  • Usual depth4–33 m
  • Water temperature28–29 °C
  • Best monthsJuly and September
  • How commonRare
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About this species

Ecsenius alleni, known commonly as the Allen's blenny, is a species of combtooth blenny in the genus Ecsenius. It is found in coral reefs in the eastern Indian Ocean, specifically in western Australia. It can reach a maximum length of 3.4 centimetres. The blennies feed primarily off of plants and algae. The specific name honours the ichthyologist Gerald R. Allen.

Text from the Wikipedia article “Ecsenius alleni”, 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: 0 records
  • February: 2 records
  • March: 0 records
  • April: 0 records
  • May: 0 records
  • June: 0 records
  • July: 9 records
  • August: 4 records
  • September: 14 records
  • October: 2 records
  • November: 5 records
  • December: 4 records

Depth and water temperature

Depth

Mostly recorded at 4–33 m · Deepest record: 41 m

  • 0–10 m: 6 records
  • 10–20 m: 4 records
  • 20–30 m: 3 records
  • 30–40 m: 1 records
  • 40–50 m: 1 records

Water temperature

Recorded in surface water of 28–29 °C

  • 26–28 °C: 3 records
  • 28–30 °C: 21 records

Names and classification

English
Allen's Blenny, Allen's Combtooth Blenny

Similar species

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).
  • 220 open-data records from 1979 to 1994.
  • Species data updated November 2, 2026.

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