White margin unicornfish
Naso annulatus
- Usual depth4–33 m
- Water temperature22–30 °C
- Best monthsMay
- How commonOccasional
About this species
The whitemargin unicornfish, also known as the ringtailed unicornfish or short-horned unicorn-fish, is a tropical fish found throughout the Indo-Pacific. It can reach a length of 100 cm, making it one of the largest members of the family Acanthuridae.
Text from the Wikipedia article “Whitemargin unicornfish”, 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: 26 records
- February: 23 records
- March: 31 records
- April: 22 records
- May: 96 records
- June: 14 records
- July: 6 records
- August: 40 records
- September: 21 records
- October: 30 records
- November: 6 records
- December: 9 records
Depth and water temperature
Depth
Mostly recorded at 4–33 m · Deepest record: 57 m
Water temperature
Recorded in surface water of 22–30 °C
Names and classification
- English
- White margin unicornfish, Banded Unicornfish, Long-horn Unicornfish, Nosefish, Ring-tailed Unicorn-fish, Ring-tailed Unicornfish, Ringtailed Unicornfish, Ringtail Unicornfish, short-horned unicornfish, Short-horned Unicorn-fish, Unicornfish, White-margin Unicorn, white margin unicornfish, Whitemargin unicornfish
Names in 7 more languages
- German
- Langnasen-Doktor, Riesen-Nasendoktorfisch, Weißband-Nashornfisch
- Spanish
- Pez Unicornio de Margen Blanco
- Filipino
- Isdang ilong, Labahita, Surahan, Tudluan, Yapot
- French
- Naso à rostre long, Nason à bordures blanches
- Japanese
- Hime-tenguhagi, Himetenguhagi, ヒメテングハギ
- Thai
- ปลายูนิคอร์นเขาสั้น
- Simplified Chinese
- 環紋鼻魚
Other scientific names: Naso annularis, Naso herrei, Priodon annulatus
Similar species
- Sleek unicornfish
Naso hexacanthus
- Orangespine unicornfish
Naso lituratus
- Blue-spine nosefish
Naso unicornis
- Humpback unicornfish
Naso brachycentron
- Spotted unicornfish
Naso brevirostris
- Humpnose unicornfish
Naso tuberosus
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).
- 700 open-data records from 1825 to 2023.
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