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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 10 (1954), S. 385-388 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary After hatching, young individuals of the Mexican blind characinAnoptichthys jordani Hubbs and Innes possess small, movable eyes. In the course of growth, the eyes are overlapped by skinfolds and tend to sink into the depth of the orbital cavity. Lens and pupilar opening may disappear and degeneration is to be found in the retina. Even very young blind characins seem to have no vision of movements, while they are able to perceive light. The lower limit is about 0.12 Lux of light intensity. Experiments concerning the localisation of this perception of light are in progress.
    Type of Medium: Electronic Resource
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