... The play of colors of the double iris on the cloud, seen by them elsewhere only as the rainbow, may have led them to the idea that this was the abode of Deity... 
David Livingstone 「Missionary Travels and Researches in South Africa」
...The iris isbrown...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...The iris is of adirty yellow gold color, the pupil oblong andhorizontal...
Various 「Hunting in Many Lands」
...Minute black flecks are present on the iris, and in someindividuals these flecks are so numerous that the eye appears gray...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...The vocal sacs are grayish brown, and the iris is adeep bronze color...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...The iris was a dull bronze color...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...The iris was a golden bronze color with muchblack reticulation...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...Similarto , but iris whitish; only two outer tail-featherswith white tips, or if on third, a mere spot...
Frank M. Chapman 「Color Key to North American Birds」
...Head gray; underparts grayishwhite; back reddish brown; no reddish brown on wings;three outer tail-feathers with white; upper mandibleblackish, lower flesh-color; iris "brown...
Frank M. Chapman 「Color Key to North American Birds」
...The iris is a muscular, pigmented curtain extending across the interior ofthe eye and having about its center an aperture termed the pupil...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...—No web between toes; one tarsal tubercle; tibiotarsal articulation reaches to nostril; iris bronze in life...
William E. Duellman 「Amphibians and Reptiles of the Rainforests of Southern El Peten, Guatemala」
...The presence of webbing between the toes, the absence of tarsal tubercles, and the coppery red iris distinguish E...
William E. Duellman 「Amphibians and Reptiles of the Rainforests of Southern El Peten, Guatemala」
...The iris is a bright copper color...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...The iris is yellowishbrown...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...The iris is pale goldenyellow...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...The iris is golden, and the vocal sacs are darkolive brown...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
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