Goby and Gudgeon

Goby noun - Small spiny-finned fish of coastal or brackish waters having a large head and elongated tapering body having the ventral fins modified as a sucker.

Gudgeon is a synonym for goby. In some cases you can use "Gudgeon" instead a noun "Goby".

Gudgeon noun - Small spiny-finned fish of coastal or brackish waters having a large head and elongated tapering body having the ventral fins modified as a sucker.

Goby is a synonym for gudgeon. You can use "Goby" instead a noun "Gudgeon".