Abstract
The density and the number per retina of catecholamine-accumulating cells were estimated in flat-mounted fluorescent preparations of the retina from different-sized goldfish Carassius auratus, 4·4–20·5 cm in body length (from tip to tip). The cell density decreased with retinal growth, while the cell number per retina increased. In parallel with the decrease of the cell density, the somata of catecholamine-accumulating cells became larger in size, the arborization area of their processes wider and the cellular arrangement in radial rows, fanning out from the optic disc towards the retinal margin, appeared to be more defined and regular.
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