A strikingly illustrated photographic identification guide to sea slugs in all their colourful variety

Nudibranchs, or sea slugs, are a group of marine gastropod molluscs whose adults lack shells, an evolutionary loss that has led to a wide variety of body shapes, colours and colour patterns, making them popular with divers and underwater photographers. In this book, experienced nudibranch experts Bernard Picton and Christine Morrow provide an accessible and authoritative photographic identification guide for anyone interested in finding and identifying nudibranchs in the coastal waters of Britain, Ireland and Northwest Europe.



Covers more than 195 species, each on its own two-page spread
Includes in situ photos to aid finding nudibranchs under water and on the shore
Features photos of nudibranchs’ distinctive spawn coils and studio photos showing detailed anatomy
Presents key distinguishing features and essential information on size, habitat, diet and distribution