| Answer | Crossword Clue |
|---|---|
| ctene | a comb-like swimming organ |
| ctenes | CTENE, a comb-like swimming organ |
| tailfan | a fanlike swimming organ of some crustaceans |
| tailfans | TAILFAN, a fanlike swimming organ of some crustaceans |
| CTENE | Swimming organ: Zool. |
| vela | swimming organ that is especially well developed in the later larval stages of many marine gastropods |
| velum | swimming organ that is especially well developed in the later larval stages of many marine gastropods |
