, Volume 87, Issue 3, pp 203–215

Regional differences of the argentea and sclera in the eye ofPoecilia reticulata P. (Teleostei: Cyprinodontidae)

A light-and electron-microscopic study
  • Yvette W. Kunz
  • Christina Wise

DOI: 10.1007/BF00995820

Cite this article as:
Kunz, Y.W. & Wise, C. Zoomorphologie (1977) 87: 203. doi:10.1007/BF00995820


The argentea of thePoecilia reticulata eye is divided into a black-iridescent dorsal and a silvery-iridescent ventral region. An opaque black patch lies on the dorso-ventral meridian passing through the optic nerve. The structure and ultrastructure of the various layers of the argentea and sciera are described. Three types of crystals occurring in the iridophores of the argentea have been found. The possible functional significance of the regional structural differences of argentea and sciera are discussed.

Copyright information

© Springer-Verlag 1977

Authors and Affiliations

  • Yvette W. Kunz
    • 1
  • Christina Wise
    • 1
  1. 1.Department of ZoologyUniversity CollegeDublin 4Ireland