W. Schargel

Publications41
h-index13
Citations819
Highly Influential Citations111
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PHYLOGENETIC SYSTEMATICS OF DART-POISON FROGS AND THEIR RELATIVES (AMPHIBIA: ATHESPHATANURA: DENDROBATIDAE)
Abstract The known diversity of dart-poison frog species has grown from 70 in the 1960s to 247 at present, with no sign that the discovery of new species will wane in the foreseeable future. Although… Expand
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Phylogenetic systematics of dart-poison frogs and their relatives (Amphibia, Athesphatanura, Dendrobatidae). Bulletin of the AMNH ; no. 299
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An Enigmatic New Snake from Cloud Forest of the Península de Paria, Venezuela (Colubridae: Genus Taeniophallus?)
Abstract The snake Taeniophallus nebularis, new species, is known from a single specimen collected in montane cloud forest, 800 m above sea level, Península de Paria, northeastern Venezuela. It is a… Expand
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Molecular systematics of Caribbean skinks of the genus Mabuya (Reptilia, Scincidae), with descriptions of two new species from Venezuela
Phylogenetic relationships among the species of Mabuya present around the Caribbean Sea (Antilles, Central America, and northern South America) are proposed for the first time. The molecular… Expand
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BRIDGING THE GAP IN PROCTOPORUS DISTRIBUTION: A NEW SPECIES (SQUAMATA: GYMNOPHTHALMIDAE) FROM THE ANDES OF VENEZUELA
We describe a new species of Proctoporus from the Cordillera de Mérida, Venezuela. The new species is the first Proctoporus recorded from this mountain range and fills a large hiatus in the known… Expand
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Morphological Extremes—Two New Snakes of the Genus Atractus from Northwestern South America (Colubridae: Dipsadinae)
Abstract Two new Andean snakes exhibit extreme morphology in a genus of South American dipsadine colubrids. One, Atractus attenuatus, new species, is a slender, exceptionally attenuated snake 420 mm… Expand
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Taxonomy, Hemipenial Morphology, and Natural History of Two Poorly Known Species of Anadia (Gymnophthalmidae) from Northern South America
Abstract Anadia pariaensis Rivas, La Marca, and Oliveros, 1999, and Anadia steyeri Nieden, 1914, are two particularly rare and poorly known lizards described from single specimens. In the case of A.… Expand
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Gecko on the rocks: an enigmatic new species of Gonatodes (Sphaerodactylidae) from Inselbergs of the Venezuelan Guayana
A new species of diurnal gecko of the genus Gonatodes is described from Inselbergs (granite outcrops) on the western peripheral lowlands of the Guiana Shield, Venezuela. The new species can be… Expand
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A new species of Mabuya (Squamata, Scincidae) from the Venezuelan Andes
Mabuya meridensis sp. nov. is described from the Cordillera de Merida, Venezuelan Andes. This species differs from all other Mabuya species by the combined presence of seven dark and four whitish… Expand
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The Hemipenes of Some Snakes of the Semifossorial Genus Atractus, with Comments on Variation in the Genus
Abstract The hemipenes of seven species of Atractus (Atractus emigdioi, Atractus major, Atractus mariselae, Atractus poeppigi, Atractus torquatus, Atractus univittatus, and Atractus ventrimaculatus)… Expand
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