In this study of the electroretinograms of dragonflies (adults and nymphs) the objectives were to determine the number of classes of photoreceptors present in the visual system and to allocate these to particular morphological regions. There are probably five classes of photoreceptors present with peak sensitivities near 550, 530, 518, 420, and < 380 mµ. The dorsal ocelli contain two classes (518 mµ and < 380 mµ). The ventral (anterior) ommatidia of the adult compound eye contain at least two classes (near 518 mµ and < 380 mµ) and probably a third class (near 550 mµ). The dorsal ommatidia of the adult compound eye contain one class (420 mµ) and possibly another class (< 380 mµ). The compound eye of the nymph contains one class (530 mµ) and possibly another class (420 mµ).
Article|
November 01 1965
The Components of the Visual System of a Dragonfly
Philip Ruck
Philip Ruck
From the Department of Biology, Tufts University, Medford, Massachusetts, and the Department of Zoology, University of Wisconsin, Madison, Wisconsin.
Search for other works by this author on:
Philip Ruck
From the Department of Biology, Tufts University, Medford, Massachusetts, and the Department of Zoology, University of Wisconsin, Madison, Wisconsin.
Dr. Ruck's present address is the Department of Zoology, University of Wisconsin
Received:
May 14 1965
Online ISSN: 1540-7748
Print ISSN: 0022-1295
Copyright © 1966 by The Rockefeller University Press
1965
J Gen Physiol (1965) 49 (2): 289–307.
Article history
Received:
May 14 1965
Citation
Philip Ruck; The Components of the Visual System of a Dragonfly . J Gen Physiol 1 November 1965; 49 (2): 289–307. doi: https://doi.org/10.1085/jgp.49.2.289
Download citation file: