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OPTICAL STRUCTURE OF THE CRAB SPIDER MISUMENOPS PALLENS (ARANEAE, THOMISIDAE)

Authors
Publisher
American Arachnological Society
Publication Date
Disciplines
  • Biology
  • Medicine

Abstract

Abstract We describe the histological structure of the eyes of Misumenops pallens (Araneae, Thomisidae). We have carried out frontal, sagittal and transverse histological sections of the eyes. All the eyes have cuticular and laminar corneas and lenses. The anterior median eyes have two cellular types in the rhabdom; the remaining eyes have three cellular types. The anterior median eyes have a dark pigmented U-shaped mark in the middle of the retina. The indirect eyes have a dark pigmented band divided by a grate tapetum. The pathway of the optic nerves is also described. Our results suggest that Thomisidae may be a close relative of the superfamily Lycosoidea.

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