Localities of occurrence that are not plotted on the distribution maps are recorded in italic type under Specimens Examined. In the list of Specimens Examined the localities and specimens are listed in the following order: countries in alphabetical order; states or departments in alphabetical order in each country; localities in alphabetical order in each state or department; museum numbers in numerical order after the abbreviations of names of museums. When more than one specimen bears a single catalogue number, the number of specimens is given in parentheses following the museum catalogue number. Specimens for which data are given only as to country or to state or department are listed first after the name of that political unit under "no specific locality."
The abbreviations for the museum collections are:
| AMNH | American Museum of Natural History |
| ANSP | Academy of Natural Sciences of Philadelphia |
| BMNH | British Museum (Natural History) |
| CAS | California Academy of Sciences |
| CNHM | Chicago Natural History Museum |
| ERA-WTN | E. Ross Allen-Wilfred T. Neill, Ross Allen's Reptile Institute |
| KU | University of Kansas Museum of Natural History |
| MCZ | Museum of Comparative Zoology, Harvard |
| MVZ | Museum of Vertebrate Zoology, University of California |
| NMW | Naturhistorisches Museums Wien, Vienna |
| SU | Stanford University Natural History Museum |
| TCWC | Texas Cooperative Wildlife Collection, Agricultural and Mechanical College of Texas |
| UF | University of Florida Collections |
| UIMNH | University of Illinois Museum of Natural History |
| UMMZ | University of Michigan Museum of Zoology |
| USNM | United States National Museum |
Family Colubridae
Subfamily Xenodontinae
Tomodon (part) Duméril, Bibron and Duméril, Erpétologie Générale, 7(pt.2):936, February 25, 1854 (lineatus and vittatus); Salvin, Proc. Zool. Soc. London, 28:455, 1860 (pulcher).
Psammophis (part), Günther, Catalogue of Colubrine Snakes in the Collection of the British Museum, London, 1858:135 (lineatus).
Conophis Peters, Monatsb. Akad. Wiss. Berlin, 1860:519-520, pl., fig. 3 (vittatus); Cope, Proc. Acad. Nat. Sci. Philadelphia, 13:300, December 28, 1861 (lineatus concolor); Proc. Acad. Nat. Sci. Philadelphia, 18:318-319, February 20, 1867 (lineatus concolor); Proc. Acad. Nat. Sci. Philadelphia, ser. 2, 8:137, 1876 (pulcher); Bocourt in Duméril, Bocourt and Mocquard, Mission Scientifique au Mexique et dans l'Amerique Centrale, 2:643-644, pl. 38, fig. 5, 1886 (lineatus lineatus); Cope, Proc. Amer. Philos. Soc., 23:489, October 28, 1886; Hoffmann, Klassen und Ordnungen des Thier-Reichs. Reptilien. Bd. 6, 3:1707, 1890; Cope, Trans. Amer. Philos. Soc., 18:207, April 15, 1895; Dunn, Bull. Antivenin Inst. Amer., 2(1):21, 24, April, 1928; Copeia, no. 4:214, December 31, 1937 (nevermanni).