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. 2016 Aug 4;10:80. doi: 10.3389/fnana.2016.00080

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Copyright © 2016 Schumann, Hering and Mayer.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Simplified diagram illustrating the position of Er-arthropsin immunoreactive somata and neuropils in the anterior nervous system of Onychophora. Immunoreactivity within the nerve cord neuropils and the antennal tracts not shown. (A) Dorsal view. Immunoreactive somata and neuropils within the brain are shown. (B) Lateral view. Immunoreactive somata within the brain are shown. Immunoreactive neuropils are not shown. (C) Transverse view (based on cross sections of the head). Immunoreactive neuropils within the brain and immunoreactive somata within the antennal glomeruli are shown. Abbreviations: ag, antennal glomeruli; at, antennal tract; cb, central body; cn, central neuropil; dc, deutocerebrum; ey, eye; ho, hyprocerebral organ; mb, mushroom body; nc, nerve cord; pc, protocerebrum.