The ventral aspect of the leech ganglion is shown with many of the known cells highlighted in color. About two-thirds are unknown, indicated in white. Several VSD recordings of cells are shown in green. Simultaneous intracellular recordings are shown in black for the Retzius cell and cell 169.
Frady and Kristan BMC Neuroscience 2012 13(Suppl 1):F1 doi:10.1186/1471-2202-13-S1-F1