ement de leur distribution géographique; et la réalisation d'une base de données informatiques et de CDROM.The project encloses the realization of the inventory of the echinoid and asteroid fauna from indopacific, atlantic, subantarctic and antarctic waters; the description of their morphological and ethoecological features; the analyse of their geographic distribution; and the realization of an informatic data basis and CDROM.