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Fig. 6 | BMC Evolutionary Biology

Fig. 6

From: Assessing segmental versus non-segmental features in the ventral nervous system of onychophorans (velvet worms)

Fig. 6

Organisation of individual ventral nerve cords in Onychophora as revealed by different neuronal markers: antisera against dopamine (a), serotonin (b), octopamine (c) and tyramine (d). Maximum projection confocal micrographs of Euperipatoides rowelli (c). Median is left. Asterisks indicate the distribution of somata that is significantly different from uniform (χ2 *, **, ***, ****, p < 0.05, 0.01, 0.001, 0.0001 respectively; n.s. not significant; see Table 1 for more details). Dotted brackets indicate leg-bearing regions characterised by the position of leg nerves. d Note the condensed groups of neuronal cell bodies labelled against the amine tyramine that are present near the bases of leg nerves. Scale bars: 200 μm

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