. Bulletin - American Museum of Natural History. Natural history; Science. Fig. 9. Fig. 10. Fig. 11 Figs. 9-11. Thomotnys fulvus. Natural size. Fig. 9. No. *',; j, , ail , San Bernardino Ranch, Arizona. Fig. 10. No. |$ff, , ;nl , San Bernardino Ranch, Arizona. Fig. it. No. ?,';:,',',, , ail., San Bernardino Ranch, Arizona The lower surface of the skull also presents much variation in details in specimens from the same locality strictly comparable as to age and sex. A single feature—the pterygoid hamuli—is here selected for illustration. As shown in Figs. 9-11, these vary in respect to the angl
. Bulletin - American Museum of Natural History. Natural history; Science. Fig. 9. Fig. 10. Fig. 11 Figs. 9-11. Thomotnys fulvus. Natural size. Fig. 9. No. *',; j, , ail , San Bernardino Ranch, Arizona. Fig. 10. No. |$ff, , ;nl , San Bernardino Ranch, Arizona. Fig. it. No. ?,';:,',',, , ail., San Bernardino Ranch, Arizona The lower surface of the skull also presents much variation in details in specimens from the same locality strictly comparable as to age and sex. A single feature—the pterygoid hamuli—is here selected for illustration. As shown in Figs. 9-11, these vary in respect to the angle of divergence of the processes and in their conformation. In consequence of these variations it is almost impossible to point out any single cranial character that may be relied upon as absolutely diagnostic. The rostral and interorbital portions of the skull are broader than in T. bottte, and the general form of the skull is epiite different in the two species. On the other hand, the rostral portion is less developed than in the T. aureus group. " This gopher was the most generally distributed of any of the mammals taken during the expedition. It was found almost everywhere from Fort Lowell to the summits of the Huachuca,. 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 American Museum of Natural History; Allen, J. A. (Joel Asaph), 1838-1921. New York [American Museum of Natural History]
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