. Bonner zoologische Monographien. Zoology. 65 lateral ground colour and more dark spots and blotches on the lateral flanks. The dorsal zig-zag band consists of 22 to 41 rhombs, blotches, or windings along the back. The mean number for the southern populations is and for the northern populations Neck pattern consists of two obhque spots, sometimes connected with the dorsal zig-zag band. In the southern populations 56 % of the examined specimens had one or both neck spots united with the dorsal band. The corresponding figure for the northern populations is < 16 ^o. Two small dots
. Bonner zoologische Monographien. Zoology. 65 lateral ground colour and more dark spots and blotches on the lateral flanks. The dorsal zig-zag band consists of 22 to 41 rhombs, blotches, or windings along the back. The mean number for the southern populations is and for the northern populations Neck pattern consists of two obhque spots, sometimes connected with the dorsal zig-zag band. In the southern populations 56 % of the examined specimens had one or both neck spots united with the dorsal band. The corresponding figure for the northern populations is < 16 ^o. Two small dots on head anterior to the obhque bands are always present. Belly pattern greyish with dark, often black half-moon shaped blotches. A dark band from posterior border of eye to corner of mouth. One or two series of alternating dark spots, blotches, or transverse bars laterally on Fig. 29: Northern 9 of Vipera xanthina, from Efesus, west Anatolia, Turkey (MHNG 1598,82). Crown of head covered with two large and somewhat convex supraoculars, which are in broad contact with eye, and separated from each other by a row of 5 to 8 (?r = for the southern populations, for the northern) interocular scales at shortest distance. Total number of intersupraoculars 22 to 40 (x" = ). One canthal scale on each side separating supraoculars and supranasals. Normally 2 apicals (r = in southern populations and in northern) bordering rostral. Total number of inter- canthals 7—14 = in south, in the north) and with a total number of scales on top of head (intercanthals + intersupraoculars) ranging from 31 to 52 (?r = in the south, in the north). Eye separated from supralabials by two subocular rows (one row on one side of head in a single northern specimen) and surrounded by a first inner and a second outer circumocular ring containing 11—14 (x = ) and 13—17 {\ = ) scales respectively. Nostril in the middle of a big nasal shield, which is pa
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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectzoology
