Retinal projections in the caecilian Ichthyophis kohtaoensis (Amphibia,Gymnophiona) |
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Authors: | Prof. Dr. Werner Himstedt Gerhard Manteuffel |
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Affiliation: | (1) Institut für Zoologie, Technische Hochschule, Darmstadt, Bundesrepublik Deutschland;(2) Institut für Zoologie, Technische Hochschule, Schnittspahnstraße 3, D-6100 Darmstadt, Federal Republic of Germany |
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Abstract: | Summary 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 circum-scribed 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. |
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Keywords: | Retinal projections HRP-transport Gymnophiona Ichthyophis kohtaoensis |
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