Image of Clypeaster ravenelii (A. Agassiz 1869)

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Cake Urchins

Clypeaster Lamarck 1801

visual system

Ullrich-Lüter et al 2011
photoreceptor cell
URI: http://purl.obolibrary.org/obo/BTO_0001060

Definition: A specialized cell type in a multicellular organism that is sensitive to light.

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