Form und Zellzahl der akustischen Nervenzentren in der Medulla oblongata von Eulen (Striges)

Summary The special form and the number of nerve cells of the auditory centres in the owl's medulla are described and compared with those of other birds. The highest degree of differentiation is found in the most nocturnal species,Tyto alba. Comparing the number of auditory nerve cells in the medulla with the weight of the brain in birds of different size, an unexpectedly low rate of increase was found.