The reniform body: An integrative lateral protocerebral neuropil complex of Eumalacostraca identified in Stomatopoda and Brachyura

摘要: Mantis shrimps (Stomatopoda) possess in common with other crustaceans, and Hexapoda, specific neuroanatomical attributes of the protocerebrum, most anterior part arthropod brain. These include assemblages interconnected centers called central body complex lateral protocerebra, situated eyestalks, paired mushroom bodies. The phenotypic homologues these across Panarthropoda support view that ancestral integrative circuits crucial to action selection memory have persisted since early Cambrian or late Ediacaran. However, discovery another prominent neuropil stomatopod protocerebrum raises question whether it is unique Stomatopoda at least developed this lineage, which may originated upper Ordovician Devonian. Here, we describe structure center, reniform body. Using confocal microscopy classical silver staining, demonstrate receives inputs from multiple sources, including optic lobe's lobula. Although also projections lobula, entirely distinct body, albeit connected by discrete tracts. We discuss implications their coexistence Stomatopoda, occurrence eumalacostracan lineage what mean for our understanding brain functionality Pancrustacea.