This book meticulously catalogs and describes 47 species of muricide sea snails found in the fossil record of Italy. The author presents detailed descriptions, precise measurements, and comparative analyses, situating the discovery of these species within the broader context of the geologic history of the region. Through meticulous examination, the author establishes a robust classification system for these ancient snails, organizing them into two distinct sections based on the presence or absence of tubular structures. The author's work provides a valuable resource for paleontologists and geologists, offering a comprehensive overview of the diversity and evolution of these marine creatures during the Tertiary period. By examining the characteristics and distribution of these fossils, the author contributes to our understanding of the paleoenvironmental conditions and evolutionary processes that shaped the ancient Mediterranean ecosystem.