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Philippine Bent-Toed Geckos of the Cyrtodactylus agusanensis Complex: Multilocus Phylogeny, Morphological Diversity, and Descriptions of Three New Species

Philippine Bent-Toed Geckos of the Cyrtodactylus agusanensis Complex: Multilocus Phylogeny,... We review the taxonomic status of Philippine bent-toed geckos previously referred to Cyrtodactylus agusanensis . We delineate four evolutionary lineages within the C. agusanensis complex from the southeastern islands of the archipelago and describe three of these lineages as new species. The new species and true C. agusanensis are identified by numerous, nonoverlapping morphological characters and by allopatric ranges on separate islands. Our morphology-based taxonomic conclusions are bolstered by biogeographic evidence and marked interspecific divergence between monophyletic groups defined by mitochondrial and nuclear DNA sequences. To compliment these descriptions and enable future taxonomic work on Philippine Cyrtodactylus , we rediagnose and redescribe C. agusanensis . Because the holotype of C. agusanensis was destroyed in World War II, we designate a neotype for this species and restrict its geographic range to north central Mindanao Island. Our phylogenetic estimate suggests that the C. agusanensis complex originated in Mindanao and spread progressively north, diversifying incrementally with colonization of successive islands in a south-to-north pattern of biogeographic expansion and allopatric speciation. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Herpetological Monographs Allen Press

Philippine Bent-Toed Geckos of the Cyrtodactylus agusanensis Complex: Multilocus Phylogeny, Morphological Diversity, and Descriptions of Three New Species

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Publisher
Allen Press
Copyright
The Herpetologists' League, Inc.
Subject
Articles
ISSN
0733-1347
eISSN
1938-5137
DOI
10.1655/HERPMONOGRAPHS-D-10-00005.1
Publisher site
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Abstract

We review the taxonomic status of Philippine bent-toed geckos previously referred to Cyrtodactylus agusanensis . We delineate four evolutionary lineages within the C. agusanensis complex from the southeastern islands of the archipelago and describe three of these lineages as new species. The new species and true C. agusanensis are identified by numerous, nonoverlapping morphological characters and by allopatric ranges on separate islands. Our morphology-based taxonomic conclusions are bolstered by biogeographic evidence and marked interspecific divergence between monophyletic groups defined by mitochondrial and nuclear DNA sequences. To compliment these descriptions and enable future taxonomic work on Philippine Cyrtodactylus , we rediagnose and redescribe C. agusanensis . Because the holotype of C. agusanensis was destroyed in World War II, we designate a neotype for this species and restrict its geographic range to north central Mindanao Island. Our phylogenetic estimate suggests that the C. agusanensis complex originated in Mindanao and spread progressively north, diversifying incrementally with colonization of successive islands in a south-to-north pattern of biogeographic expansion and allopatric speciation.

Journal

Herpetological Monographs – Allen Press

Published: Dec 1, 2010

Keywords: Cyrtodactylus ; Geckos ; Gekkonidae ; New species ; Philippines ; Species delimitation

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