Summary
Injections of large doses of horseradish peroxidase (HRP) into the telencephalon of the squirrel fish (Holocentrus rufus) revealed the first anatomical evidence for a visual thalamo-telencephalic projection in a teleost. The central optic nucleus of the thalamus appears to be the only visual thalamic nucleus projecting to the telencephalon in this species. Since the central optic nucleus has a large tectal input but not a direct one from the retina, it is suggested that a retino-geniculo-telencephalic pathway does not exist in this species.
References
Campbell CBG, Ebbesson SOE (1969) The optic system of a teleost: Holocentrus reexamined. Brain Behav Evol 2:415–430
Ebbesson SOE (1972) A proposal for a common nomenclature for some optic nuclei in vertebrates and the evidence for a common origin of two such cell groups. Brain Behav Evol 6:75–91
Ebbesson SOE, Heimer L (1970) Projections of the olfactory tract fibers in the nurse shark (Ginglymostoma cirratum). Brain Res 17:47–55
Ebbesson SOE, Schroeder DM (1971) Connections of the nurse shark's telencephalon. Science 173:254–256
Ebbesson SOE, Vanegas H (1976) Telencephalic projections in two teleost species. J Comp Neurol 165:181–196
Ebbesson SOE, Jane JA, Schroeder DM (1972) An overview of major interspecific variations in thalamic organization. Brain Behav Evol 6:92–130
Graeber RC, Schroeder DM, Jane JA, Ebbesson SOE (1978) Visual discriminations following partial telencephalic ablations in the nurse sharks (Ginglymostoma cirratum). J Comp Neurol 180:325–344
Hall WC, Ebner FF (1970) Parallels in the visual afferent projections of the thalamus in the hedgehog (Paraechimus hypomelas) and the turtle (Pseudemys scripta). Brain Behav Evol 3:135–154
Heimer L, Olmos J de (1980) Mapping of collateral projections with the HRP-method. Brain Res. In press
Ito H, Kishida R (1978) Telencephalic afferent neurons identified by the retrograde HRP method in the carp diencephalon. Brain Res 149:211–215
Karten HJ, Hodos W (1970) Telencephalic projections of the nucleus rotundus in the pigeon (Columba livia). J Comp Neurol 140:35–51
Meader RG (1934) The optic system of the teleost, Holocentrus. I. The primary optic pathways and the corpus geniculatum complex. J Comp Neurol 60:361–407
Scalia F, Ebbesson SOE (1971) The central projection of the olfactory bulb in a teleost (Gymnothorax funebris). Brain Behav Evol 4:376–399
Vanegas H, Ebbesson SOE (1976) Projections of the optic tectum in two teleost species. J Comp Neurol 165:161–180
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Acknowledgements. The author is grateful to Drs. J. Maldonado, Dietrich Meyer and Henning Scheich for encouragement and support in this endeavor. The study was supported by: National Institutes of Health grant EY-02014 and EY-03264, a NIH grant to Dr. José del Castillo and the German Science Foundation (SFB 45)
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Ebbesson, S.O.E. A visual thalamo-telencephalic pathway in a teleost fish (Holocentrus rufus). Cell Tissue Res. 213, 505–508 (1980). https://doi.org/10.1007/BF00237895
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DOI: https://doi.org/10.1007/BF00237895