Figure 1From: The nervous system of Isodiametra pulchra (Acoela) with a discussion on the neuroanatomy of the Xenacoelomorpha and its evolutionary implicationsWhole mount of mature specimen stained by direct-coloring method of Karnovsky and Roots[36]. A. Entire specimen. B. Anterior half, dorsal side in focus. C. Anterior half, ventral side in focus. Arrowheads point to neurons in an anterior-posterior orientation and around the posterior rim of the mouth. Abbreviations: 1 dorsal neurite bundle; 2 lateral neurite bundle; 3 ventral neurite bundle; 4 medio-ventral neurite bundle; cop male copulatory organ; m mouth; pc dorsal posterior commissure. Scale bars: A, B, C 100 μm.Back to article page