A fully revised and completely redesigned edition of the first photographic identification guide to New Zealand's unique marine algae, by the country's pre-eminent seaweed expert Wendy Nelson. Across three main sections covering green, brown and red algae, over 150 genera and 250 key species are described. Each species entry includes up-to-date information on nomenclature, type locality, morphology, habitat, distribution and notes on identification and key characteristics.

New Zealand Seaweeds: An Illustrated Guide has over 500 illustrations, with each entry illustrated by either underwater or coastal photographs and supplemented by herbarium scans, microscopic photographs or reproductions of celebrated botanical artist Nancy Adams' paintings.