Comparative Analysis of the Patterns of Receptor and Horizontal Cells in Teleost Fishes

  • H.-J. Wagner
Part of the NATO Advanced Study Institutes Series book series (NSSA, volume 1)


Many day active fish with an acute vision have their visual cells arranged in very regular, mosaic-like patterns. This has been known for a long time and described by many authors, some of whom pointed to the apparent similarity to the arrangement of receptor cells in the insect eye. In both cases, the highly organised orientation of the visual cells were taken as a prerequisite for the functional capacity of the eyes. The real significance of the mosaic of receptor cells, however, remained a matter of speculation. More recently, it was found that the regular arrangment was not restricted to the visual cells but could be traced further down to the underlying neural layers. The first indications of this were found in labrids (Engström, 1963) and mugilids (Selvin de Testa, 1966) and concerned the parallels in the orientation of cones and horizontal cells. The aim of the present investigation is to examine whether the finding has more general applicability in teleost fish, and to discuss its possible consequence for the processing of primary visual information.


Horizontal Cell Cone Type Double Cone Outer Plexiform Layer Single Cone 
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Copyright information

© Plenum Press, New York 1975

Authors and Affiliations

  • H.-J. Wagner
    • 1
  1. 1.Lehrstuhl für Morphologie und AnatomieUniversität RegensburgRegensburgW. Germany

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