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Attachment of Decorating Materials in Loxorhynchus crispatus (Brachyura: Majidae)

Mary K. Wicksten
Transactions of the American Microscopical Society
Vol. 97, No. 2 (Apr., 1978), pp. 217-220
Published by: Wiley on behalf of American Microscopical Society
DOI: 10.2307/3225595
Stable URL: http://www.jstor.org/stable/3225595
Page Count: 4
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Attachment of Decorating Materials in Loxorhynchus crispatus (Brachyura: Majidae)
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Abstract

Decorating materials in Loxorhynchus crispatus are attached to the hooked setae of the dorsal surface of the exoskeleton. Examination with the scanning electron microscope reveals that the setae bear spinules, a median groove, and a spiralled region. Ablation of these setae prevents the crabs from decorating, but removal of the glands of the first maxillipeds has no effect on the process. Attachment of decorating material appears to be mechanical, not by means of an adhesive secreted by the mouthparts.

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