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Rib Penetration and Associated Antipredator Adaptations in the Salamander Pleurodeles waltl (Salamandridae)

Robert T. Nowak and Edmund D. Brodie, Jr.
Copeia
Vol. 1978, No. 3 (Aug. 10, 1978), pp. 424-429
DOI: 10.2307/1443606
Stable URL: http://www.jstor.org/stable/1443606
Page Count: 6
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Rib Penetration and Associated Antipredator Adaptations in the Salamander Pleurodeles waltl (Salamandridae)
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Abstract

The sharp rib tips of Pleurodeles waltl penetrate the lateral warts which do not contain granular glands. The ribs of P. waltl are longer than those of other salamandrids and penetrate the skin when this species assumes its antipredator postures. The skin secretions of P. waltl are toxic when injected into white mice and presumably coat the rib tips as they penetrate the skin. The coadaptation of these antipredator mechanisms allow them to act synergistically in repelling predators.

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