: Virtual field guide of the British natural history.
Biodidac: Biology pictures:
Mediterranean sea slugs by
A further sea slug page by
: Nudibranchs from the Mediterranean and the Indian Ocean.
Numerous (!) pictures of snails' and other molluscs' shells can be found at Worldwide Conchology (
), especially of non-European snail groups.
: Underwater pictures by Jeff Rosenfeld.
: "Marine Life of the Northwest Pacific Ocean" by Keith and Jon.
: Underwater pictures by Sami, from the American North-West coast: Washington State as well as British Columbia.
The Marine Fauna Gallery of Norway
: Fabulous pictures of marine animals by Kåre Telnes.