Ruffed cells in the olfactory bulb of freshwater teleosts. I: Golgi impregnation

The olfactory bulbs of Barbus meridionalis, Carassius carassius, Chondrostoma polylepis, Cyprinus carpio, Tinca tinca and Salmo gairdneri were examined by two variants of the Golgi technique. We report, for the first time, the existence of ruffed cells in these species. This neuronal type shows a characteristic morphology and location. Overall, these cells exhibit a generalised pattern, although there are qualitative and quantitative variations between the various species studied.