
doi: 10.1007/bf00219250
pmid: 3986886
The retinal projections of the caecilian Ichthyophis kohtaoensis were investigated by anterograde transport of HRP. The optic tract forms two bundles in the diencephalon, a narrow medial bundle in the optic tectum, and a basal optic tract consisting of few fibres. Terminal fields are in the thalamus, pretectum, tectum, and as a circumscribed basal optic neuropile in the tegmentum. Thalamic, pretectal and tectal projections are contralateral as well as ipsilateral. The reduced but existing visual projection corresponds to a reduced but existing visually guided behaviour.
Amphibians, Animals, Visual Pathways, Horseradish Peroxidase, Retina
Amphibians, Animals, Visual Pathways, Horseradish Peroxidase, Retina
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