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  • 1980-1984  (2)
  • 1983  (2)
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  • 1980-1984  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Evolutionary links between apposition and superposition optics in crustacean eyes (1983)
    [s.l.] : Nature Publishing Group
    Nature 302 (1983), S. 818-821 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The two basic types of arthropod compound eye, apposition and superposition, use widely different optical principles1*5. The apposition eye consists of optically isolated units (ommatidia), each having a lens forming an inverted image (Fig. la). In superposition eyes, the lens systems of many ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/302818a0
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The euphausiid compound eye — a morphological re-investigation (Crustacea: Euphausiacea) (1983)
    Springer
    Zoomorphology 103 (1983), S. 59-66 
    Details
    ISSN: 1432-234X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The ommatidia of the compund eye of the krill, Meganyctiphanes norvegica, are composed of the following cell types: corneagenous cells, main cone cells, accessory cone cells, distal pigment cells, and retinula cells. The corneagenous cells secrete the cuticular lenses, below which the crystalline cones are present. The bipartite crystalline cone is formed within the main cone cells, whereas the accessory cone cells invest the distal part of the cone and proceed proximally in the retina to the basement membrane. Six distal pigment cells are arranged around each ommatidium, though shared by adjacent ommatidia. The seven retinula cells form the rhabdom, and penetrate the basement membrane as axons. The basement membrane is formed by the conjoined extended prolongations from the accessory cone cells and sheets from the basal pigment cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00312058
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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