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Creatures » Cellular Organisms » Eukaryotes » Opisthokonts » Animal » Bilateria » Deuterostomes » Echinoderms » "Starfish, Brittle Stars, And Basket Stars" » Sea Stars » Velatida » Pterasteridae » Hymenaster «

Hymenaster koehleri Fisher 1910

visual system

Garm and Nilsson 2014
apposition eyes
URI: http://purl.obolibrary.org/obo/IDOMAL_0002229

Definition: A compound eye with no separation between the crystalline-cone layer and the retinula, each rhabdom receiving light only from its own corneal lens.

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