. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. 226 U. Joger, A. Teynié & D. Fuchs Distribution and ecology There are now two localities known to us in the Aras Valley and its tributaries in the Karakourt-Kagizman area of northeastern Turkey. We do not indicate the exact loca- lities to protect this rare species from snake collectors. It remains uncertain whether the species actually occurs in northwestern Iran as stated by Nilson & Andrén (1984). The habitat of V. wagneri consists of rocky slopes and ped
. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. 226 U. Joger, A. Teynié & D. Fuchs Distribution and ecology There are now two localities known to us in the Aras Valley and its tributaries in the Karakourt-Kagizman area of northeastern Turkey. We do not indicate the exact loca- lities to protect this rare species from snake collectors. It remains uncertain whether the species actually occurs in northwestern Iran as stated by Nilson & Andrén (1984). The habitat of V. wagneri consists of rocky slopes and pediments with scarce vege- tation (grassy pastures nearby) at an altitude of 1,200 m to 2,000 m, not far from water (figs. 6 and 7). The accompanying herpetocoenosis contains Coluber ravergieri, Nat rix natrix, N. tessellata, Eirensis modestus and Lacerta Fig. 6: Habitat of V. wagneri, Aras valley E of Karakourt, NE Turkey. Photo Warncke. Evolutionary position V. wagneri is clearly a separate species as evidenced by its distinct morphology and by the considerable immunological distance of its serum albumin from that of V. xanthina (Herrmann et al. 1987). There is also a difference in venom composition (SDS electrophoresis ) between V. wagneri and both V. xanthina and V. raddei (Tey- nié, unpublished). However, according to the immunological data, V. wagneri is the nearest living relative of V. xanthina (perhaps except V. bulgardaghica, which has not been studied).. 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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