Figure 16From: Invertebrate neurophylogeny: suggested terms and definitions for a neuroanatomical glossaryIndividually identifiable neurons in the ventral nerve center of the chaetognaths Sagitta setosa and S. enflata. D1-D5 label individually identifiable neurons. Note also the intraspecific and interspecific differences [FMRF-amide-like immunoreactivity.] From [329], with permission of Springer.Back to article page