Maximum size of dwarf caiman, Paleosuchus palpebrosus (Cuvier, 1807), in the Amazon and habitats surrounding the Pantanal, Brazil

In: Amphibia-Reptilia
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  • 1 1INPA Ecologia, CP 487, Manaus, AM, 69011-900, Brazil
  • 2 2INPA Ecologia, CP 487, Manaus, AM, 69011-900, Brazil
  • 3 3Embrapa Pantanal, CP 109, Corumbá, MS 79320-900, Brazil;, Email:


The dwarf caiman, Paleosuchus palpebrosus, is considered one of the smallest crocodilians. However, our surveys indicate that the species regularly reaches larger sizes than usually reported in the literature. Most individuals lose tail tips, and we did not encounter any individual with snout-vent length (SVL) > 70 cm that had an intact tail. P. palpebrosus attains SVL > 112.5 cm (equivalent to a total length with intact tail estimated from SVL of 210 cm) in streams around the Pantanal, 106 cm (198 cm) in flooded forest in central Amazonia, and 100 cm (187 cm) in flooded forest and around the Madeira-Guaporé River.

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