Feather stars (crinoids) -- Sea urchins (echinoids) -- Brittle stars (ophiuroids). "This handbook is the third in a series on the marine invertebrates called echinoderms found in the coastal waters of northwestern North America. The first two covered the sea cucumbers and sea stars. In this book, Philip Lambert and William C. Austin describe 24 species of brittle stars, 8 sea urchins and 2 feather stars that live in marine waters to a depth of 200 metres, from Puget Sound, Washington, along the entire coast of British Columbia and the Alaska Panhandle, to Glacier Bay. The authors provide all the details about each group and species. Colour photographs and detailed illustrations help with identification." "This book is a resource for professional marine biologists, naturalists and students; and the authors' style makes it suitable for anyone interested in coastal marine life."--BOOK JACKET.