Hog-nose Snake (Anguis capite viperino: Catesby, Mark. 1754. The Natural History of Carolina, Florida and the Bahama Islands: Containing the Figures of Birds, Beasts, Fishes, Serpents, Insects, and Plants: Particularly the Forest-trees, Shrubs, and other Plants, not Hitherto Described, or Very Incorrectly Figured by Authors. Together with Their Descriptions in English and French. To which, are Added Observations on the Air, Soil, and Waters: with Remarks upon Agriculture, Grain, Pulse, Roots, &c. To the Whole, is Prefixed a New and Correct Map of the Countries Treated of. , London. pp.); Crossed Snake (Coluber simus: Forster, John R. 1771. A systematic catalogue of all the known plants of English North-America or, a flora Americae Septentrionalis. Pages in From Forster's translation of Bossu, Travels through that part of North America formerly called Louisiana, Vol. 1. T. Davies, London, England. pp.); Crossed Snake (Coluber simus: Pennant, Thomas. 1785. Artic Zoology. Henry Hughs, London. pp.); Hog-nosed Snake (Heterodon simus: Jordan, David Starr. 1876. Manual of the Vertebrates of the Northern United States: Including the District East of the Mississippi River, and North of North Carolina and Tennessee, Exclusive of Marine Species. Jansen, McClurg, and Company, Chicago, Illinois.. 342pp.); Hog-nosed Snake (Heterodon simus: Jordan, David S. 1878. Manual of the Vertebrates of the Northern United States: Including the District East of the Mississippi River, and North of North Carolina and Tennessee, Exclusive of Marine Species. Second Edition, Revised, and Enlarged. Jansen, McClurg & Company, Chicago. pp.); Sand Viper (Heterodon simus simus: Yarrow, Henry C. 1882. Check list of North American Reptilia and Batrachia with catalogue of specimens in U. S. National Museum. Bulletin of the United States National Museum (24):1-249); Hog-nose Snake (Heterodon simus: Garman, H. 1892. A synopsis of the reptiles and amphibians of Illinois. Illinois Laboratory of Natural History Bulletin 3():215-403); Hognose Snake (Heterodon simus: Rhoads, Samuel N. 1895. Contributions to the zoology of Tennessee. No. 1, Reptiles and amphibians. Proceedings of the Academy of Natural Sciences, Philadelphia 47():376-407); Sand Viper (Heterodon simus: Beyer, George. 1900. Louisana herpetology. Proceedings of the Louisiana Society of Naturalists 1897-1899():24-46); Long-nosed Sand Snake (Heterodon simus: Brown, Arthur, E. 1902. Report of the Board of Directors. Pages 5-22 in Thirtieth Annual Report of the Board of Directors of the Zoological Society of Philadelphia. Allen, Lane, and Scott, Philadelphia, Pennsylvania. pp.); Southern Hog-nosed Snake (Heterodon simus: Schmidt, Karl Peterson and D. D. Davis. 1941. Field Book of Snakes of the United States and Canada. C.P. Putnam and Sons, New York. 365pp.); Hog Nosed Snake (Heterodon simus: Wright, Albert Hazen. 1950. Common names of the snakes of the United States. Herpetologica 6(6):141-186); Puffing Adder (Heterodon simus: Wright, Albert Hazen. 1950. Common names of the snakes of the United States. Herpetologica 6(6):141-186); Snubby Viper (Heterodon simus: Wright, Albert Hazen. 1950. Common names of the snakes of the United States. Herpetologica 6(6):141-186); Southern Hog-nosed Snake (Heterodon simus: Wright, Albert Hazen. 1950. Common names of the snakes of the United States. Herpetologica 6(6):141-186); Hog-nose Snake (Heterodon simus: Wright, Albert Hazen. 1950. Common names of the snakes of the United States. Herpetologica 6(6):141-186); Spread Head Snake (Heterodon simus: Wright, Albert Hazen. 1950. Common names of the snakes of the United States. Herpetologica 6(6):141-186); Sand Viper (Heterodon simus: Wright, Albert Hazen. 1950. Common names of the snakes of the United States. Herpetologica 6(6):141-186); Southern Hog-nose (Heterodon simus: Wright, Albert Hazen. 1950. Common names of the snakes of the United States. Herpetologica 6(6):141-186); Flat Nosed Snake (Heterodon simus: Wright, Albert Hazen. 1950. Common names of the snakes of the United States. Herpetologica 6(6):141-186); Puff Adder (Heterodon simus: Wright, Albert Hazen. 1950. Common names of the snakes of the United States. Herpetologica 6(6):141-186); Spreading Adder (Heterodon simus: Wright, Albert Hazen. 1950. Common names of the snakes of the United States. Herpetologica 6(6):141-186); Puffing Adder (Heterodon simus: Wright, Albert Hazen. 1950. Common names of the snakes of the United States. Herpetologica 6(6):141-186); Blowing Adder (Heterodon simus: Wright, Albert Hazen. 1950. Common names of the snakes of the United States. Herpetologica 6(6):141-186); Spreading Adder (Heterodon simus: Wright, Albert Hazen. 1950. Common names of the snakes of the United States. Herpetologica 6(6):141-186); Blowing Viper (Heterodon simus: Wright, Albert Hazen. 1950. Common names of the snakes of the United States. Herpetologica 6(6):141-186); Hog-nosed Viper (Heterodon simus: Wright, Albert Hazen. 1950. Common names of the snakes of the United States. Herpetologica 6(6):141-186); Southern Hog-nosed Snake (Heterodon simus: Schmidt, Karl P. 1953. A Check List of North American Amphibians and Reptiles. 6th Edition. University of Chicago Press, Chicago, Illinois. 280pp.);