Are There Morphological Differences between Two Genetically Differentiated Clades in the Adder Vipera berus berus?

S. Ursenbacher, I. Sasu, M. Rossi, J.-C. Monney


The morphologies of 164 adders (Vipera berus berus) were analyzed in order to assess if morphological differences occur between the Northern and the Italian clades. Pholidosis and some corporal proportions were measured, corresponding to 17 parameters. Several parameters show significant differences between clades (e.g., subcaudals, labials, sublabials, parietal scales). Moreover, discriminant analyses separate both clades with high degrees of accuracy of a correct classifying.


Vipera berus; morphology; discriminant analysis

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Boettger O. (1880), «Die Reptilien und Amphibien von Syrien, Palästina und Cypern», Ber. senckenb. naturf. Ges Frankfurt, 1879/1880, 132 – 219.

Joger U., Kalyabina S., Schweiger S., Mayer W., Orlov N. L., and Wink M. (2003), «Phylogeny of the Eurasian Vipera (Subgenius Pelias)», in: Abstrs. of the 12th Ordinary General Meeting, August 12 – 16, 2003, Soc. Eur. Herpetol., St. Petersburg.

Linnaeus (1758), Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Vol. 1, 10th Edition.

Nilson G. and Andrén C. (2001), «The meadow and steppe vipers of Europe and Asia — the Vipera (Acridophaga) ursinii complex», Acta Zool. Hung., 47, 87 – 267.

Saint Girons H. (1978), «Morphologie externe comparée et systématique des Vipères d’Europe (Reptilia, Viperidae)», Rev. Suisse Zool., 85, 565 – 595.

Scali S. and Gentilli A. (1999), «Morphometric analysis and sexual dimorphism of extinct adders (Vipera berus) of the Po plane (Northern Italy)», in: Miaud C. and Guyetant R. (eds.), Current Studies in Herpetology. Proc. of the 9th Ordinary General Meeting of the Soc. Eur. Herpetol., Soc. Eur. Herpetol., Le Bourget du Lac, pp. 391 – 396.

Ursenbacher S., Carlsson M., Helfer V., Tegelstrom H., and Fumagalli L. (submitted), «Phylogeography and Pleistocene refugia of the Adder (Vipera berus) as inferred from mitochondrial DNA sequence data», Mol. Ecol.

Zarevsky S. F. (1917), «Formes nouvelles du genre Vipera, trouvées dans l’empire russe: Vipera tigrina n.sp. and Vipera berus var. sachalinensis var nova?» Ann. Mus. Zool. Acad. Petrograd, 21.



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