Opisthobranchs (nudibranchs and other sea slugs) are the main topic of this website. But it also deals with flatworms.

You could see the species from the lists included in each order or from the geographic areas of the "Biodiversity" item.

New species are added to this site little by little. Below you can see the links to recently added or modified pages.

Nudibranchia
Cephalaspidea
Sacoglossa
Anaspidea
Notaspidea
Flatworms