抄録
The otolithic membrane and the otoliths were studied light-microscopically by histological sections and surface specimens of the otolithic organs of the guinea pig. The otoliths were larger in the lower portion of the otolithic layer and smaller towards it's upper surface. However, in the stri ola, the narrow marginal zones, and the indented portion of the macula, the of oliths were very small and varied less in size. In the striola of the macula utriculi, the otolithic layer as a whole was thinner and it formed a concave groove on the surface of the otolithic membrane, while in the striola of the macula sacculi, the otolithic layer was thicker and formed a long series of hills. In the striola, the otolithic layer was generally nearer to the surface of the sensory epithelium than that in the other central part fo the maculae sacculi and utriculi.
