Systematic revision of the Malagasy chameleons Calumma boettgeri and C. linotum (Squamata: Chamaeleonidae).

@article{Prtzel2015SystematicRO,
  title={Systematic revision of the Malagasy chameleons Calumma boettgeri and C. linotum (Squamata: Chamaeleonidae).},
  author={David Pr{\"o}tzel and Bernhard Ruthensteiner and Mark D. Scherz and Frank Glaw},
  journal={Zootaxa},
  year={2015},
  volume={4048 2},
  pages={
          211-31
        }
}
We revise the taxonomic status of two species of Madagascan chameleons in light of a recent molecular phylogenetic study on the Calumma nasutum group. The investigation of morphological and osteological characters led to a clear delineation between two species within the C. boettgeri complex, C. boettgeri and C. linotum. Calumma linotum has been considered either a synonym of C. boettgeri or a dubious, poorly defined taxon. So far it has only been known from the male holotype with the imprecise… 
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TLDR
This new species of the genusCalummathat is described here using an integrative approach combining morphology, coloration, osteology and molecular genetics, and recommended to be classified as Endangered under criterion B1ab(iii) of the IUCN Red List.
Untangling the trees: Revision of the Calumma nasutum complex (Squamata: Chamaeleonidae)
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The island rule explains consistent patterns of body size evolution in terrestrial vertebrates.
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It is concluded that the island rule is pervasive across vertebrates, but that the implications for body size evolution are nuanced and depend on an array of context-dependent ecological pressures and environmental conditions.
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