The Cambridge Natural History, Vol. 02 (of 10)

A scientific publication written in the late 19th to early 20th century. This volume focuses on the classification, anatomy, and ecology of various phyla, specifically flatworms and mesozoa, providing detailed descriptions of different species within these groups. It aims to serve as an extensive resource for scholars of zoology and natural history. The opening of this volume introduces the topic of Platyhelminthes, also known as flatworms, detailing their physiological characteristics and diverse habitats. It elaborates on the classification of this phylum into three main groups: Turbellaria (free-living flatworms), Trematoda (flukes), and Cestoda (tapeworms). The text begins with a description of the Polyclad flatworm, ''Leptoplana tremellaris'', offering insights into its appearance, locomotion, feeding habits, reproductive system, and ecological role, thereby setting the stage for an in-depth exploration of these fascinating organisms.