This book discusses 745 species of recent marine Gastropoda collected on three islands of the Netherlands Antilles, situated off the coast of Venezuela. Special has been given to the small and lesser known gastropods, resulting in 58 species new to science. For the identification a number of keys is supplied. Over 480 species are illustrated on 47 plates, consisting of original drawings and photographs, SEM photographs and figures from the literature. For the non-figured species reference is made to illustrations in modern handbooks in Caribbean molluscs.