This book sets a new benchmark for their identification. It presents nudibranchs that have been photographed by the authors over a period of more than 30 years, along with numerous pictures by contributing diving friends and scientists from around the world.

• 2500+ photos of nudibranchs in their natural environment
• over 1180 species of nudibranchs illustrated
• identification of most nudibranchs known to species level
• relationships between species from different oceans
• information on behaviour (defense, camouflage + mimicry)

A comprehensive photo-identification guide to nudibranchs of the world seas.

This book is the perfect guide for divers, snorkelers, field workers, biologists, naturalists, scientists and photographers.

Edition: 2007