Spoonbill catfish and Siluriform fish

Spoonbill catfish noun - Large catfish of central United States having a flattened head and projecting jaw.

Siluriform fish and spoonbill catfish are semantically related. In some cases you can use "Siluriform fish" instead a noun phrase "Spoonbill catfish".

Siluriform fish noun - Any of numerous mostly freshwater bottom-living fishes of Eurasia and North America with barbels like whiskers around the mouth.

Spoonbill catfish and siluriform fish are semantically related. Sometimes you can replace phrase "Spoonbill catfish" with "Siluriform fish", this phrases are similar.