. The Canadian field-naturalist. 1976 PENDLEBURY: WESTERN HOGNOSE SNAKE IN ALBERTA 421 (n = 10) and in male (n = 2). In other parts of the range the average count is for females and for males (Piatt 1969). The lateral spots are 1 â /^-2 scales long and involve 2-5 scale rows. These markings are darker than the dorsal blotches. The number of tail blotches ranges from 8-19 in females and 11-15 in males. The ventral body pattern of H. n. nasicus has variously been described as having a wide area of black covering the central portion (Ditmars 1939) or black pigmentation broken by sc
. The Canadian field-naturalist. 1976 PENDLEBURY: WESTERN HOGNOSE SNAKE IN ALBERTA 421 (n = 10) and in male (n = 2). In other parts of the range the average count is for females and for males (Piatt 1969). The lateral spots are 1 â /^-2 scales long and involve 2-5 scale rows. These markings are darker than the dorsal blotches. The number of tail blotches ranges from 8-19 in females and 11-15 in males. The ventral body pattern of H. n. nasicus has variously been described as having a wide area of black covering the central portion (Ditmars 1939) or black pigmentation broken by scattered yellow markings to produce a somewhat check- ered pattern (Stebbins 1954). Both pattern types (Figure 3) are represented by the Alberta specimens. The geographic distribution of the. 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 Ottawa Field-Naturalists' Club. Ottawa, Ottawa Field-Naturalists' Club
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