| The fry is fairly well equipped for this since its skin is tough, scaleless and covered with mucous. |
| Their flat, scaleless bellies and slender, elongated bodies facilitate the process. |
| Most have small, round, embedded scales, although some are scaleless. |
| The candiru,, is a scaleless, parasitic catfish of the family Trichomycteridae found in the Amazon River region. |
| They are elongated, scaleless, and often transparent. |
| Beyond P. spathula being a source of caviar, their skin is thick, scaleless, strong, and tans well, making it a marketable product. |
