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Image of Dibothriocephalus latus (Linnaeus 1758) Lühe 1899
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Dibothriocephalus latus (Linnaeus 1758) Lühe 1899

    visual system

  • stemmata
    • URI: http://purl.obolibrary.org/obo/UBERON_0000046
    • Definition: Eye-spots which may be set into a pit to reduce the angles of light that enters, to allow the organism to deduce the angle of incoming light. Lens-like structures may be present, but stemmata, unlike lens eyes, cannot form an image, either for lack of refractive power or retinal resolution.
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