Elsevier

Journal of Chemical Neuroanatomy

Volume 4, Issue 1, January–February 1991, Pages 1-38
Journal of Chemical Neuroanatomy

An atlas of the brain of the electric fish Apteronotus leptorhynchus

https://doi.org/10.1016/0891-0618(91)90030-GGet rights and content

Abstract

This atlas consists of a set of six macrophotographs illustrating the important external landmarks of the apteronotid brain, as well as 54 transverse levels through the brain stained with cresyl violet. There are 150 μm between levels and the scales have 1 mm divisions (100 μm small divisions). In general the neuroanatomy of this brain is similar to that of other teleosts except that all parts known to be concerned with electroreception are greatly hypertrophied (electrosensory lateral line lobe, nucleus praeminentialis, caudal lobe of the cerebellum, torus semicircularis dorsalis, optic tectum and nucleus electrosensorius). There are other regions of this brain which are hypertrophied or which have not been described in other teleosts, but which are not known to be directly linked to the electrosensory/electromotor system; these regions are mentioned in the accompanying text.

References (43)

  • M.R. Braford et al.

    Organization of the diencephalon and pretectum of the ray-finned fish

  • G. Brochu et al.

    Zebrin II: a polypeptide antigen expressed selectively by Purkinje cells reveals compartment in rat and fish cerebellum

    J. Comp. Neurol

    (1990)
  • T.H. Bullock

    Species differences in effect of electroreceptor input on electric organ pacemakers and other aspects of behaviour in electric fish

    Brain, Behav. and Evol.

    (1969)
  • T.H. Bullock et al.

    Electroreception

    (1986)
  • C.E. Carr et al.

    A Golgi study of the cell types in the dorsal semicircularis of the electric fish Eigenmannia: Functional and morphological diversity in the midbrain

    J. Comp. Neurol.

    (1985)
  • C.E. Carr et al.

    Electroreception in gymnotiform fish: central anatomy and physiology

  • C.E. Carr et al.

    Laminar organization of the afferent and efferent systems of the torus semicircularis of gymnotiform fish: Morphological substrates for parallel processing in the electrosensory system

    J. Comp. Neurol.

    (1981)
  • S.O.F. Ebbesson

    The selective silver-impregnation of degenerating axons and their synaptic endings in non-mammalian species

  • T. Finger

    Organization of the teleost cerebellum

  • T.E. Finger et al.

    Electrosensory pathways to the valvula cerebelli in mormyrid fish

    Exp. Brain Res.

    (1981)
  • M. Hagedorn

    The ecology, courtship, and mating of gymnotiform electric fish

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