Universität Rostock, 2022
Abstract: The swimming crab morphotype differs from many other representatives of true crabs (Brachyura) by features that enable them to swim in a unique manner. In this work, it is shown that the morphotype differs from non-swimming crabs also by its internal anatomy. A morphological reconstruction of the ancestors comes to the conclusion that the morphotype only evolved once, but has been reversed in several cases to forms that can not swim.
doctoral thesis free access