Fig. 3. Examples of four morphological types of auditory interneurons (see Table 1) (tj19-1, tj67-1, tj67-2, tj71-2) with two sensitivity maxima that revealed a shift in the characteristic frequency in the range 3–8 kHz. A fifth cell type (tj52-1) with a different morphology was only partially stained and therefore is not shown. The cells were stained with Lucifer Yellow.