Fig. 7
From: Postembryonic development and lifestyle shift in the commensal ribbon worm
Schematic summary of the embryonic/postembryonic development of M. japonica at 15 °C and their life cycle. Abbreviations: an, apical neuron; co, cerebral organ; dnc, dorsal nerve commissure; ln, lateral neuron; pnc, posterior nerve commissure; sc, sucker primordium