| Answer | Crossword Clue |
|---|---|
| stickleback | a freshwater fish with a spiny back |
| sticklebacks | STICKLEBACK, a freshwater fish with a spiny back |
| bullheads | A small, mainly freshwater Eurasian fish of the sculpin family, with a broad flattened head and spiny fins |
| bullhead | A small, mainly freshwater Eurasian fish of the sculpin family, with a broad flattened head and spiny fins |
| ruffes | A freshwater fish of the perch family, with a greenish-brown back and yellow sides and underparts. Native to Eurasia, it has been introduced into Lakes Michigan and Superior |
| perch | small freshwater fish with a spiny fin |
