Robust Assfish
Bassozetus robustus
- Usual depth1,121–1,921 m
- Water temperature17–29 °C
- Best monthsJuly, September, and November
- How commonRare
About this species
Bassozetus robustus, the robust assfish, is a species of cusk-eel (Ophidiidae) found in deep tropical and temperate waters around the world.
Text from the Wikipedia article “Bassozetus robustus”, 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: 0 records
- March: 1 records
- April: 2 records
- May: 4 records
- June: 4 records
- July: 9 records
- August: 2 records
- September: 6 records
- October: 1 records
- November: 10 records
- December: 2 records
Depth and water temperature
Depth
Mostly recorded at 1,121–1,921 m · Deepest record: 2,826 m
Water temperature
Recorded in surface water of 17–29 °C
Names and classification
- English
- Robust Assfish
Names in 2 more languages
- Japanese
- Ishifukumenitachiuo, イシフクメンイタチウオ
- Simplified Chinese
- 壯體索深鼬魚, 壯體索深鼬鳚, 鼬魚
Similar species
- Golden Cusk
Sirembo imberbis
- Alcock's Cusk-eel
Alcockia rostrata
- Japanese Cusk
Glyptophidium japonicum
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).
- 108 open-data records from 1908 to 2015.
- Species data updated October 26, 2026.
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