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Cell and Tissue Research

, Volume 186, Issue 3, pp 435–452 | Cite as

Fine structure of the eyes of orb-weavers, Argiope amoena L. Koch (Aranea: Argiopidae)

2. The anterolateral, posterolateral and posteromedial eyes
  • Akira Uehara
  • Yoshihiro Toh
  • Hideki Tateda
Article

Summary

The anterolateral eye, the posterolateral eye and the posteromedial eye of the web-building spider, Argiope amoena have been examined by light and electron microscopy. The dioptric apparatus of all three eyes is similar in structure, and consists of a cornea, a lens and a vitreous body. The retina contains monopolar receptor cells, the cell bodies of which are present beneath the vitreous body in all three eyes. Proximal processes of the receptor cells form rhabdoms beneath the cell body layer and then extend toward the first optic glomerulus as an ocellar nerve. Two distinct patterns of retinal organization are present in the three eyes. In one type the rhabdomic layer of the retina is backed by a pigmented layer. In the other type the rhabdomic layer is backed by a tapetal reflecting layer. Rhabdomic structure and cytoplasmic inclusions of the receptor cells differ greatly between the two types. The anterolateral eye possesses a single type of retina with the rhabdoms backed by the tapetum. Both the posterolateral and the posteromedial eye are similar in structure, each possessing beneath the common dioptric apparatus retinae of both types.

Key words

Photoreceptors Arthropod Spider (Argiope amoena) Ultrastructure 

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Copyright information

© Springer-Verlag 1978

Authors and Affiliations

  • Akira Uehara
    • 1
  • Yoshihiro Toh
    • 1
  • Hideki Tateda
    • 1
  1. 1.Department of Biology, Faculty of ScienceKyushu UniversityFukuokaJapan

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