1875
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Yarrow, Henry C. Report upon the collections of batrachians and reptiles made in portions of Nevada, Utah, California, Colorado, New Mexico, and Arizona during the years 1871, 1872, 1872, and 1874. Wheeler, G. M. ed., Report upon Geographical and Geological Explorations and Surveys West of the One Hundredth Meridian in Charge of First Lieut. Geo. M. Wheeler, Corps of Engineers, U.S. Army, Under the Direction of Brig. Gen. A. A. Humphryes, Chief of Engineers, U.S. Army. Volume 5 (Zoology), Part. 4. US Government, Washington, D. C. 509-584pp.
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2003
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Smith, Hobart M. and David Chiszar. The checkered nomenclatural history of the Narrow-headed Garter Snake, Thamnophis rufipunctatus (Cope). Bulletin of the Chicago Herpetological Society 38(3):46-48
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