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The tiered retina of Dytiscus: a new type of compound eye

Horridge, George Adrian; Walcott, B.; Ioannides, A. C.


The retina of Dytiscus is tiered, with proximal and distal layers of receptors at different levels. Photoreceptor units of the proximal retina of the eye of Dytiscus have fields of view so wide that light entering by any facet is able to excite a receptor belonging virtually to any ommatidium in the light- or dark-adapted eye. Although the distal rhabdomeres may have small fields of view, the proximal retina is clearly not adapted for perception of form or movement. The sensitivity of proximal...[Show more]

CollectionsANU Research Publications
Date published: 1970-02-17
Type: Journal article
Source: Proceedings of the Royal Society of London. Series B. Biological sciences
DOI: 10.1098/rspb.1970.0013


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