The book provides stunning photos and breaks new ground in demonstrating the variation within species. It also provides a great amount of information about the basic biology of opisthobranchs, including food preferences of the highly specialized diet of most nudibranchs and their relatives, their egg masses and defensive mechanisms.
310 species are illustrated with multiple colour photos. Close-ups of gills, rhinophores and eggs are included for many species. Introduction explains where and how to find these beautiful creatures.