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Alai! Alai! – a new species of the Gloydius halys (Pallas, 1776) complex (Viperidae, Crotalinae), including a brief review of the complex

In: Amphibia-Reptilia
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  • 1 1Department of Biology, Villanova University, 800 Lancaster Avenue, Villanova, PA 19085, USA and Zoologische Staatssammlung München, Münchhausenstrasse 21, D81247 Munich, Germany
  • | 2 2University of Erlangen-Nuremberg, Schlossplatz 6, D91054 Erlangen, Germany
  • | 3 3Department of Ecology and Evolution, University of Lausanne, CH1015 Lausanne, Switzerland and Department of Ecology and Genetics, Uppsala University, 75236 Uppsala, Sweden
  • | 4 4Zoological Institute, Russian Academy of Sciences, Universitetskaya nab. 1, 199034 St. Petersburg, Russia
  • | 5 5Institute of Systematics and Ecology of Animals, Siberian Branch of Russian Academy of Sciences, Frunze 11, 630091 Novosibirsk, Russia and Tomsk State University, Lenina Avenue 36, 634050 Tomsk, Russia
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During a scientific field expedition to the Alai-Pamir range five specimens of the genus Gloydius have been collected in the larger Alai. A morphological and genetical examination of the specimens has shown that they are part of the G. halys complex, but represent a new taxon which is characterized by the following unique character combination: It is a slender and moderately stout small snake, up to 479 mm total length. The head has nine symmetrical plates on the upper head, 7 supralabial and 8-9 infralabial scales. Body scales in 20-22 rows around midbody, 143-156 ventral and 35-45 usually paired subcaudal scales. The cloacal plate not divided. The general coloration consists of various different tones of olive, tan and brown, having a distinct head, but an indistinct body pattern with, excluding the tail, 26-29 transverse crossbands, which are not extending to the sides of the body. The haplotype network shows the new species within the G. halys complex and close related to both, G. h. halys and G. h. caraganus. So far the new described species is only known from the Alai range. However, various Gloydius specimens are found in Kyrgyzstan and because of the complicated taxonomy those specimens have to re-identified to clarify their status and the status of the new species.

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