In this paper, three species of the macrostomid free-living flatworm genus Macrostomum are described. Two species, Macrostomumlittorale Wang & Shi, sp. nov. and M.shekouense Wang & Shi, sp. nov., were collected from coastal water at Shenzhen, Guangdong

A new species of Macrostomum from limnic environments in Argentina is described. Macrostomum platensis n. sp. differs from its congeners by the shape and length of its stylet. Moreover, the arrangement of the muscle system is described using rhodamine-labeled

The turbellarians are a key group due to the position they occupy in the tree of life, due to their regenerative capacities and other characteristics such as their cosmopolitanism, ubiquity, adaptability and their predatory role in food chains. “Turbellaria”