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. 1979 Mar 16;203(4385):1125-7.
doi: 10.1126/science.203.4385.1125.

Red-absorbing visual pigment of butterflies

Red-absorbing visual pigment of butterflies

G D Bernard. Science. .

Abstract

Noninvasive photochemical and physiological experiments with intact butterflies of 17 species showed that nine species have a rhodopsin absorbing maximally at 610 nanometers, contained in retinular cells that are maximally sensitive at 610 nanometers. This is the longest-wavelength visual pigment known for an invertebrate. Eight species of butterflies lack the 610-nanometers rhodopsin. All species possess a rhodopsin absorbing maximally in the green region of the spectrum.

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