segment
 |__abdominal segment__________________
abdomen                                |
 |__abdominal segment__________________|
central nervous system                 |
 |__ventral nerve cord_________________|
 |__neuromere__________________________|
organ system subdivision               |
 |__ventral nerve cord_________________|
segmental subdivision of organ system  |
 |__neuromere__________________________|
                                       abdominal neuromere  100 rec.
                                        |__adult abdominal neuromere 37 rec.
                                        |   |__cell body rind of adult abdominal neuromere
                                        |   |__gustatory center of genitalia
                                        |   |__Pdf neuron of abdominal neuromere(+) 5 rec.
                                        |__embryonic abdominal neuromere 4 rec.
                                        |   |__embryonic abdominal 1 neuromere 2 rec.
                                        |   |__embryonic abdominal 2 neuromere 1 rec.
                                        |   |__embryonic abdominal 3 neuromere 1 rec.
                                        |   |__embryonic abdominal 4 neuromere 1 rec.
                                        |   |__embryonic abdominal 5 neuromere 1 rec.
                                        |   |__embryonic abdominal 6 neuromere 1 rec.
                                        |   |__embryonic abdominal 7 neuromere 1 rec.
                                        |   |__embryonic abdominal 8 neuromere
                                        |   |__embryonic abdominal 9 neuromere
                                        |__larval abdominal neuromere 51 rec.
                                            |__cell body rind of larval abdominal neuromere(+)
                                            |__larval abdominal 1 neuromere(+) 5 rec.
                                            |__larval abdominal 2 neuromere(+) 4 rec.
                                            |__larval abdominal 3 neuromere(+) 6 rec.
                                            |__larval abdominal 4 neuromere(+) 6 rec.
                                            |__larval abdominal 5 neuromere(+) 6 rec.
                                            |__larval abdominal 6 neuromere(+) 6 rec.
                                            |__larval abdominal 7 neuromere(+) 6 rec.
                                            |__larval abdominal A-subperineurial glial cell(+) 3 rec.
                                            |__larval abdominal anterior commissure(+) 4 rec.
                                            |__larval abdominal posterior commissure(+) 4 rec.
                                            |__larval B-subperineurial glial cell(+) 28 rec.
                                            |__larval immature CCAP neuron(+)
                                            |__larval terminal abdominal neuromere(+) 12 rec.