Biology
The sea hare is a gastropod with a very thin, transparent internal shell measuring around 15 mm in diameter. Its head has olfactory (smell) tentacles called rhinophores that look similar to a rabbit’s ears. This species can be found on algae-covered rocks. It is able to swim more or less easily in the open water, thanks to lateral folds in its mantle, which it uses as fins.
![](https://www.aquarium-larochelle.com/wp-content/uploads/2021/01/lievre-de-mer-aquarium-la-rochelle-bloc2-560X560.jpg)