Excerpt from Scientific Results of the World Cruise of the Yacht "Alva," 1931, William K. Vanderbilt: Crustacea: Anomura, Macrura, Euphausiacea, Isopoda, Amphipoda, And, Echinodermata: Asteroidea and Echinoidea Plate Echinodermata Introduction Asteroidea Order Phanerozona Suborder Valvulosa Family Oreasteridae Genus Culcita novae-guinae Family Ophidiasteridae Genus Linckia guildingii laevigata Order Spinulosa Suborder Alvelata Family Acanthasteridae Genus Acanthaster planei Echinoidea Order Cidaroidea Family Cidaridae Genus Eucidaris thouarsii Genus Prionocidaris baculosa var. Annulifera Genus Phyllacanthus imperialis. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.