Roudi escolar
Promethichthys prometheus
- Usual depth109–740 m
- Water temperature16–30 °C
- Best monthsMay and September
- How commonOccasional
About this species
Promethichthys prometheus, the Roudi escolar, is a species of snake mackerel native to the warm temperate and tropical waters of all the oceans where it occurs at depths of from 80 to 800 metres. This species grows to a length of 100 centimetres (39 in) SL though most do not exceed 40 centimetres (16 in) SL. It is important to local peoples as a food fish and is popular as a game fish though it has been reported to carry the ciguatera toxin. It is also utilized as bait. This species is the only known member of its genus.
Text from the Wikipedia article “Promethichthys”, 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: 14 records
- March: 15 records
- April: 9 records
- May: 24 records
- June: 6 records
- July: 4 records
- August: 9 records
- September: 37 records
- October: 20 records
- November: 21 records
- December: 6 records
Depth and water temperature
Depth
Mostly recorded at 109–740 m · Deepest record: 2,275.5 m
Water temperature
Recorded in surface water of 16–30 °C
Names and classification
- English
- Roudi escolar, Bermuda Catfish, Conejo, Night Serpent, Promethean Escolar, purple snake mackerel, Rabbit-fish, Rabbitfish, Rabbit Fish, Roudi, Sarpon, single-line gemfish, Singleline Gemfish, Snake Mackerel
Names in 4 more languages
- Spanish
- Conejo, Escolar Prometeo, Pez Conejo, Tajalí de Canto
- French
- Escolier Clair, Escolier clair, Poisson hule
- Japanese
- Kuroshibikamasu, クロシビカマス
- Simplified Chinese
- 帶梭, 紡錘蛇鯖, 紫金魚
Other scientific names: Dicrotus armatus, Dicrotus parvipinnis, Gempylus prometheus, Prometheus atlanticus, Promethichthys pacificus, Promethichthys solandri, Promethychthis prometheus, Promethycthus prometeus, Promethycthus prometheus, Prometichthys prometeus, Prometichthys prometheus, Thyrsites ballieui, Thyrsites prometheus
Similar species
- Snake mackerel
Gempylus serpens
- Black snake mackerel
Nealotus tripes
- Royal escolar
Rexea prometheoides
- Sackfish
Neoepinnula orientalis
- Bengal escolar
Rexea bengalensis
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).
- 468 open-data records from 1885 to 2025.
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