Ereunias grallator
- Usual depth350–565 m
- Water temperature20–27 °C
- Best monthsMarch, October, and November
- How commonRare
About this species
Ereunias is a monotypic genus of marine ray-finned fish belonging to the family Rhamphocottidae, the grunt sculpins. Its only species is Ereunias grallator which is a bathydemersal species found at depths of around 500 m (1,600 ft) in the northwestern Pacific Ocean off Japan. This species attains a maximum published total length of 30 cm (12 in). This species was first formally described in 1901 by the American ichthyologists David Starr Jordan and John Otterbein Snyder from Misaki, Sagami in Japan. Jordan and Snyder proposed the new genus Ereunias for the new species. The genus name is derived from ereunao, meaning "to explore" which may refer how it uses elongated pectoral-fin rays as feelers or "feet" to explore the substrate; suffixed with ias which is used in some Greek names for fishes. The specific name grallator is "stiltwalker" in Latin and is an allusion to the elongated pectoral fin rays. Along with the genus Marukawichthys this taxon was classified in the family Ereunidae but this was synonymised with the Rhamphocottidae in 2014.
Text from the Wikipedia article “Ereunias”, 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: 1 records
- February: 0 records
- March: 6 records
- April: 0 records
- May: 1 records
- June: 1 records
- July: 0 records
- August: 0 records
- September: 0 records
- October: 4 records
- November: 5 records
- December: 3 records
Depth and water temperature
Depth
Mostly recorded at 350–565 m · Deepest record: 725 m
Water temperature
Recorded in surface water of 20–27 °C
Names and classification
Names in 2 more languages
- Japanese
- Torikajika, トリカジカ
- Simplified Chinese
- 冰魚, 杜父魚, 神奈川旋杜父魚
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).
- 28 open-data records from 1902 to 2003.
- Species data updated November 2, 2026.
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