nervous system
 |__peripheral nervous system________
gustatory receptor neuron            |
 |__adult gustatory receptor neuron__|
organ system subdivision             |
 |__peripheral nervous system________|
adult neuron                         |
 |__adult gut-innervating neuron_____|
 |__adult PNS neuron_________________|
gut-innervating neuron               |
 |__adult gut-innervating neuron_____|
adult sensory neuron                 |
 |__adult gustatory receptor neuron__|
PNS neuron                           |
 |__adult PNS neuron_________________|
                                     gustatory receptor neuron of the adult pharynx  35 rec.
                                      |__dorsal cibarial sense organ neuron 8 rec.
                                      |   |__dorsal cibarial sense organ neuron of anterior sensillum
                                      |   |__dorsal cibarial sense organ neuron of posterior sensillum
                                      |__labral sense organ chemosensory neuron 10 rec.
                                      |   |__chemosensory neuron of adult labral sensillum 7(+) 10 rec.
                                      |   |__chemosensory neuron of adult labral sensillum 8
                                      |   |__chemosensory neuron of adult labral sensillum 9
                                      |__pharyngeal VL1 neuron
                                      |__ventral cibarial sense organ neuron 22 rec.
                                          |__ventral cibarial sense organ neuron of distal sensillum
                                          |__ventral cibarial sense organ neuron of middle sensillum
                                          |__ventral cibarial sense organ neuron of proximal sensillum 3 rec.
                                          |__ventral cibarial sense organ neuron V1
                                          |__ventral cibarial sense organ neuron V2
                                          |__ventral cibarial sense organ neuron V3
                                          |__ventral cibarial sense organ neuron V4
                                          |__ventral cibarial sense organ neuron V5 1 rec.
                                          |__ventral cibarial sense organ neuron V6
                                          |__ventral cibarial sense organ neuron V7
                                          |__ventral cibarial sense organ neuron V8