Using a reduced-silver neurofibrillar method, we stained a population
of bipolar cells in the capybara retina. These cells are distributed t
hroughout the retina following the same topography of other retinal ce
ll classes as the A-type horizontal cells and ganglion cells. The leve
l of axonal stratification, mosaic regularity, and dendritic coverage
factor suggest that these neurofibrillar bipolar cells comprise a popu
lation of sublamina a cone bipolar cells.