. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. New records of Vipera wagneri 223. Fig. 1: Head of Vipera wagneri, o* 1 (Munich specimen). Drawing U. Heckes. Diagnostic characters of Vipera wagneri P ho lido sis (see tab. 1). All specimens have 23 dorsal scale rows at midbody, a large supraocular plate and small, keeled head scales. This combination of characters, together with general habitus and body pattern (see below), is typical for members of the Vipera xanthina complex. None of the specimens has a complete
. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. New records of Vipera wagneri 223. Fig. 1: Head of Vipera wagneri, o* 1 (Munich specimen). Drawing U. Heckes. Diagnostic characters of Vipera wagneri P ho lido sis (see tab. 1). All specimens have 23 dorsal scale rows at midbody, a large supraocular plate and small, keeled head scales. This combination of characters, together with general habitus and body pattern (see below), is typical for members of the Vipera xanthina complex. None of the specimens has a complete circumocular ring of scales (derived character of the raddei group within the V. xanthina complex). The supraocular plates are in contact with the eyes. Thus, although ocurring within the geographical range of V. raddei, V. wagneri cannot be regarded as a close relative of raddei. Other differences from raddei are flat (non-erected) supraoculars, only one canthal (generally two in raddei), a generally lower number of ventral scales in cr wagneri and a lower number of subcaudal scales in 9 wagneri. Within the xanthina group, the mountain species V. bulgardaghica and V. born- muelleri differ from both V. xanthina and V. wagneri in having a lower number of ventral scales, whereas the subcaudal counts of V. wagneri fall within the ranges of V. bornmuelleri and V. bulgardaghica. The autapomorphic characters of those moun- tain vipers (tendency towards reduction of dorsal scale rows and of dorsal pattern. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Zoologisches Forschungsinstitut und Museum Alexander Koenig. Bonn : Das Forschungsinstitut
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