| Genus | Pseudoceros |
| Species | cf. ferrugineus |
| Authority | Hyman, 1959 |
| Family | Pseudocerotidae |
| Order | Polycladida |
| Location | Philippines |
| © Copyright | unknown swedish photographer |
| Comments | This quite rare document demonstrates how polyclad flatworms are capable of swimming by rhythmic contractions of their body muscles. Throwing the sides of the body this creates undulating waves propelling the worm over ground. |