The book on Ovulidae and related families reviews and summarizes today's knowledge of these interesting gastropods. The book gives descriptions, discussion, comparison and a critical taxonomic revision of all living taxa. Information on habitat and distribution, rarities and size ranges, along with more than 250 colour plates depicting well over 2000 specimens, including holotypes, and hundreds of in situ photos of living animals  give the first comprehensive monograph on the "allied Cowries" since Cate's (1973) work in The Veliger. A large gallery of living animals on their hosts is shown, an identification-key to the genera, a complete synonymy and a large account of references make this book an indispensible tool for collectors and scientists. 650 pages, 203 colour plates of shells and 375 illustrations of living animals, descriptions of 19 new species and 4 new genera.