This book is the second volume of two books about sea urchins (echinoids) since 1953 (Th. Mortensen). The detailed and coloured illustrated descriptions enable the reader to identify all species living today in our oceans. Recent scientific searchings are included. Volume II. describes the Irregularia with bilateral symmetry, including the well known "sand dollars" and "heart urchins", living mostly more or less deeply burrowed in the substrat.

The Echinodermata is a phylum of marine invertebrates with a fossil record reaching back to the Precambrian. Major elements of the benthic macrofauna, they play a significant role in the dynamics of the ecosystems and are choice biological models in the life sciences, from ecology to genomics. This title offers 50 papers presented at the sixth European Conferences on Echinoderms (ECE), covering population biology, biodiversity, anatomy and functional morphology, physiology and behavior, biological cycles, and resource potential. This book reflects the great diversity of its contributors, offering an opportunity to cover a broad range of important questions in a single, authoritative reference.

This book is a compilation of proceedings that contain abstracts of all papers/posters presented at the International Echinoderm Conference held in 1984 and complete papers from those submitted for publication and accepted on the recommendations of referees.

This fully revised and expanded edition of Sea Urchins provides a wide-ranging understanding of the biology and ecology of this key component of the world's oceans. Coverage includes reproduction, metabolism, endocrinology, larval ecology, growth, digestion, carotenoids, disease and nutrition. Other chapters consider the ecology of individual species that are of major importance ecologically and economically, including species from Japan, New Zealand, Australia, Europe, North America, South America and Africa. In addition, six new contributions in areas such as immunology, digestive systems and community ecology inform readers on key recent developments and insights from the literature.Sea urchins are ecologically important and often greatly affect marine communities. Because they have an excellent fossil record, they are also of interest to paleontologists. Research on sea urchins has increased in recent years, stimulated first by recognition of their ecological importance and subsequently their economic importance. Scientists around the world are actively investigating their potential for aquaculture and fisheries, and their value as model systems for investigations in developmental biology continues to increase. - Continues the series "Developments in Aquaculture and Fisheries Science" with a newly revised volume - Collects and synthesizes the state of knowledge of sea urchin biology and ecology - Expanded from previous edition to include non-edible species, providing the needed basis for broader evolutionary understanding of sea urchins

Echinoderms are now considered as a biological and geological model that underlies researches of primary importance. The extent of the contributions made by the International Echinoderm Conferences to various fields of research is attested by the scope covered by presentation at the international conferences. These proceedings contain the complete papers or abstracts of all the presentations and posters presented at the eighth International Echinoderm Conference, held in Dijon, France in September, 1994. Coverage includes: general; extinct classes; crinoids; asteroids; ophiuroids; holothuroids; and echinoids.

This volume contains abstracts of all papers presented at the International Echinoderms Conferences, and complete papers of those which were submitted for publication and accepted upon recommendation of referees.