Evolution of the Forebrain: Phylogenesis and Ontogenesis of by Prof.Dr. A. Remane (auth.), R. Hassler, H. Stephan (eds.)

By Prof.Dr. A. Remane (auth.), R. Hassler, H. Stephan (eds.)

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Anat. Anz. 67 (1929), 1-51. MEADER, R. : The forebrain of bony fishes. Akad. Wetensch. (Amsterdam) Proc. sc. 42 (1939),657-670. ANTHONY: Premieres precisions sur l'organisation du telencephale chez Latimeria chalumnae. C. R. Acad. Sci. Paris 254, (1962), 2067-2068. : Some observations on the structure of the forebrain of bony fishes. In: TOWER, D. , J. B. SCHADE, Structure and Function of the Cerebral Cortex. EIseyier, Amsterdam 1960. : Trends in the evolution of the Actinopterygian forebrain. T.

What has been said about the olfactory tracts also holds true for the connections between the telencephalon and the diencephalon. In most lower vertebrates the fibres which interconnect these two brainparts tend to divide into a medial and a lateral bundle, Forebrain of Teleosts 39 but the composition of these bundles differs among the various groups of lower vertebrates (HERRICK, 1922). Hence, the fact that a given area or nucleus of the teleostean forebrain sends its fibres either in the medial or in the lateral forebrain bundle does not give much information about the homology of that nucleus.

Die Area dorsalis telencephali zeigt infolge der unterschiedlich starken Eversion der Wandabschnitte auch in ihrer Form und Struktur größere Unterschiede. Nach HOLMGREN (1922) und KÄLLEN (1951) ist sie homolog dem Pallium und gestattet auch - fortschreitend mit der systematischen Höherentwicklung der Fische - eine gute cytoarchitektonische Gliederung. Während bei Polypterus die ganze dorsale Zone in ihrer Struktur durch und durch gleich gestaltet ist und insgesamt als Pallium angesprochen werden muß, kann man bei den Teleostei einen medialen Teil (Primordium pallii pars medialis o.

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