| Answer | Crossword Clue |
|---|---|
| OPERCLE | Gill cover of fishes. |
| opercular | a. the gill cover of fishes and amphibians b. (in many gastropods) a horny plate that closes the opening of the shell when the animal is retracted |
| suboperculum | in fishes, a bone below and partly behind the gill cover |
| subopercula | SUBOPERCULUM, in fishes, a bone below and partly behind the gill cover |
| subopercular | related to the suboperculum, in fishes, a bone below and partly behind the gill cover |
