Photomicrographs of retrogradely labeled and photofilled midget ganglion cells in whole-mount marmoset retina. The eccentricity is indicated for each cell. The somata of other ganglion cells can also be seen. A, B, OFF midget ganglion cells in a dichromat (DI). C, D, OFF midget ganglion cells in a trichromat (TRI). Midget ganglion cell somata are located toward the edge of the densely branching dendritic tree. Occasionally, midget ganglion cells in dichromat and trichromat have one or two dendrites, which extend beyond the bulk of the dendritic tree (D, white arrows). E, F, ON midget ganglion cells in a trichromat. Scale bar, 10 μm.