silurid fish
Noun: A type of freshwater catfish belonging to the family Siluridae, characterized by a lack of scales (naked skin), a long anal fin, and a caudal (tail) fin that is more or less merged with the anal fin, giving the body an eel-like appearance.
This is a specific zoological term used to refer to members of this particular family of catfish. It is primarily used in scientific, ichthyological (the study of fish), or advanced angling contexts. - The biologist identified the specimen as a silurid fish based on its elongated body and fin structure. - Several species of silurid fish are found in the rivers of Europe and Asia.
- The term is often used in contrast to other catfish families (e.g., Ictaluridae - North American catfish) to highlight specific anatomical and geographical distinctions.
- In taxonomic writing, "silurid" can also function as an adjective (e.g., ).
- Silurid (noun/adjective): A shorter form meaning the same as "silurid fish."
- Sheatfish: A common name for some large species within the Siluridae family, such as the Wels catfish ().
- Catfish (general term): A broader common name for the order Siluriformes, which includes the Siluridae family and many others.
- Old World freshwater catfish (descriptive synonym)
- Sheatfish (for specific genera, like )
The definition specifies "Old World," meaning these fish are native to Europe and Asia, as opposed to the catfish families native to the Americas. The key identifying features are the combination of scaleless skin, a very long anal fin, and the fusion of the caudal fin with the anal fin, creating a continuous fin along the underside of the rear body.
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Old World freshwater catfishes having naked skin and a long anal fin more or less merged with the eellike caudal fin
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