Table 1 Immunoreactivity patterns in the nervous system innervating the copulatory organ of Trilobodrilus axi (Tax), Dinophilus vorticoides (Dvo) and D. gyrociliatus (Dgy)
Serotonin | FMRFamide | FVRIamide | MIP | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Tax | Dvo | Dgy | Tax | Dvo | Dgy | Tax | Dvo | Dgy | Tax | Dvo | Dgy | |
Central nervous system | ||||||||||||
br* | X (6/750) | X (6/850) | X (4/42) | X (39/750) | X (26/800) | – | X (16/750) | X (8/800) | – | X (4/750) | X (4/800) | – |
vlnc (vns) | X | X | X | X | X | X | X | X | – | – | – | – |
pmn (vns) | X | X | n.a. | X | X | n.a. | – | – | n.a. | – | – | n.a. |
mvn (vns) | X | X | n.a. | X | X | n.a. | X | X | n.a. | – | – | n.a. |
com (vns) | X | X | X | – | – | X | X/− (only anterior ones) | X | – | – | – | – |
Innervation of the copulatory organ | ||||||||||||
com6 | X (4) | X (4) | X | X (4) | X (2) | – | – | X | – | – | – | – |
vpc | X | n.a. | X | X | n.a. | X | X (2) | n.a. | – | X (3) | – | – |
dpc | X | X | n.a. | X | X | n.a. | X (6) | X | n.a. | X | – | n.a. |
cpfm | – | – | X | X | X | X | X | X | X | X | – | X |
pg* | n.a. | n.a. | – | n.a. | n.a. | X (2) | n.a. | n.a. | X (4) | n.a. | n.a. | X (2) |
Innervation of the seminal vesicles | ||||||||||||
nsv | – | – | – | X | – | – | X | X | – | – | – | – |
osv | – | – | – | X (3–4) | – | – | X | – | – | – | – | – |