. Asiatic herpetological research. Reptiles -- Asia Periodicals; Amphibians -- Asia Periodicals. Vol. 3, p. 2 Asiatic Herpetological Research April 1990. FIG. 1. The distributions of the vipers from the Vipera kaznakowi complex and the Vipera ursini complex in the Caucasus. 1. V. kaznakowi, 2. V. dinniki, 3. V. darevskii, 4. V. ursini renardi (northern population) and V. ursini eriwanensis (southern population). Type localities: A -V. kaznakowi; B, B' -V. dinniki; C-V. darevskii. Localities: 1-Makh-Khokh Mountain; 2-the settlement of Khasav-Yurt; 3 -Lagodekhi; 4 -Benis-Kheri Canyon; 5 -the set
. Asiatic herpetological research. Reptiles -- Asia Periodicals; Amphibians -- Asia Periodicals. Vol. 3, p. 2 Asiatic Herpetological Research April 1990. FIG. 1. The distributions of the vipers from the Vipera kaznakowi complex and the Vipera ursini complex in the Caucasus. 1. V. kaznakowi, 2. V. dinniki, 3. V. darevskii, 4. V. ursini renardi (northern population) and V. ursini eriwanensis (southern population). Type localities: A -V. kaznakowi; B, B' -V. dinniki; C-V. darevskii. Localities: 1-Makh-Khokh Mountain; 2-the settlement of Khasav-Yurt; 3 -Lagodekhi; 4 -Benis-Kheri Canyon; 5 -the settlement of Khopa, Turkey; 6 -Mikhailovsky Pass; 7 -the settlement of Ubinskaya; 8 -the town of Maikop; 9 -the mouth of the Urushten River; 10-the Fisht-Oshtenovsky Massive; 11 -Shkhara Mountain. Extreme points of the distributions are marked. All three species, Vipera kaznakowi, V. dinniki and V. darevskii, differ in morphology and ecology (Vedmederja 1984; Orlov and Tuniyev 1986). History of the study of the Vipera kaznakowi complex. The taxonomic problems and interrelationships of the viper forms of the Eurosiberian group in the Caucasus has caused contradictions and has confused zoologists for nearly a hundred years. The fragmented highland landscapes within the overall range of the Caucasus vipers isolates even neighboring populations. Hence, there is an accumulation of unique characteristics in populations. Very complex situations emerge in sympatric areas of closely related species of" this complex. This may be connected with natural hybridization. Occasionally the identification of some individuals from intergrading populations is difficult. This particularly concerns Vipera dinniki in the areas of its interactions with V. kaznakowi, and additionally with the vipers of the V. ursini complex (Bonaparte). The high. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of t
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