Members of the gastropod class,
finger-size nudibranchs live fully exposed,
their gills forming tufts on their backs.
(Nudibranch means "naked gill," a feature that separates them from other sea slugs.).
| nudibranch | ウミウシ |
| gastropod | 腹足類 |
| fully exposed | 完全に曝された |
| gill | 魚のえら |
| tuft | 房 |
| sea slugs | ウミウシ |
reference
http://photography.nationalgeographic.com/photography/photo-of-the-day/toxic-nudibranch-pod.html
