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Size and distribution of retinal ganglion cells in the St. Kitts green monkey (Cercopithecus aethiops sabeus)

  1. Marc Herbin1,2,
  2. Denis Boire1,
  3. Maurice Ptito1,2,*

Article first published online: 6 DEC 1998

DOI: 10.1002/(SICI)1096-9861(19970714)383:4<459::AID-CNE5>3.0.CO;2-1

Issue

The Journal of Comparative Neurology

The Journal of Comparative Neurology

Volume 383, Issue 4, pages 459–472, 14 July 1997

Additional Information

How to Cite

Herbin, M., Boire, D. and Ptito, M. (1997), Size and distribution of retinal ganglion cells in the St. Kitts green monkey (Cercopithecus aethiops sabeus). J. Comp. Neurol., 383: 459–472. doi: 10.1002/(SICI)1096-9861(19970714)383:4<459::AID-CNE5>3.0.CO;2-1

Author Information

  1. 1

    Groupe de Recherche en Neuropsychologie Expérimentale and Centre de Recherche en Sciences Neurologiques, Université de Montréal, Montréal, PQ, Canada, H3C 3J7

  2. 2

    Departments of Neurology and Neurosurgery, Montreal Neurological Institute, McGill University, Montreal, PQ, Canada, H3A 2B4

*Groupe de recherche en Neuropsychologie Expérimentale, Université de Montréal, CP 6128, Montréal, PQ, Canada, H3C 3J7

Publication History

  1. Issue published online: 6 DEC 1998
  2. Article first published online: 6 DEC 1998
  3. Manuscript Accepted: 12 FEB 1997
  4. Manuscript Revised: 19 DEC 1996
  5. Manuscript Received: 21 JUN 1996

Funded by

  • National Science and Engineering Research Council of Canada. Grant Number: APA 6762
  • Ministère de l'Education du Québec (Fonds FCAR). Grant Number: EQ852

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Keywords:

  • retina;
  • fovea;
  • optic nerve;
  • amacrine cells;
  • primates

Abstract

The topographical distribution of density and the soma size of retinal ganglion cells (RGCs) were studied in the St. Kitts green monkey (Cercopithecus aethiops sabeus). The total number of RGCs, estimated from light microscopic analysis of wholemounted and of transversely sectioned retinae, ranged between 1,183,721 and 1,273,715 (mean 1,228,646). These estimates are comparable to the number of optic nerve fibres (1,220,000) estimated from semithin sections. The topographic distribution of RGCs shows a strong centroperipheral gradient. The soma size distribution of RGCs in Nissl-stained flatmounts falls within a range of between 5.7 μm and 22.9 μm and is comparable to other primate species. Somata of RGCs were found to be generally smaller within the fovea than in peripheral regions. Ganglion cells, as reported for other diurnal primates, are nonuniformly distributed with a slight nasotemporal elongation of isodensity contours, and they exhibit nasotemporal asymmetry in the frequency distribution of soma size. The topography of the RGC distribution of this semiarboreal, ground-dwelling monkey is similar to what has been found in other diurnal Old World species. J. Comp. Neurol. 383:459-472, 1997. © 1997 Wiley-Liss, Inc.

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