BioStor
 | Catalogue of the Colubridae in the Museum of the Academy of Natural Sciences of Philadelphia, with notes and descriptions of new species. Part II E D Cope (1860) Proc. Acad. Nat. Sci. Philadelphia 12: 241-266 |
 | Notes and descriptions of new and little-known species of American reptiles E D Cope (1860) Proc. Acad. Nat. Sci. Philadelphia 12: 339-345 |
 | Some remarks defining the following species of Reptilia Squamata E D Cope (1861) Proc. Acad. Nat. Sci. Philadelphia 1861: 75-76 |
 | Contributions to the ophiology of Lower California, Mexico and Central America E D Cope (1861) Proc. Acad. Nat. Sci. Philadelphia 13: 292-306 |
 | On new species of snakes in the collection of the British Museum A L B E R T Günther (1862) Ann. Mag. Nat. Hist. 9: 52-67 |
 | Dritter Nachtrag zum Katalog der Herpetologischen Sammlung des Basler Museums F Müller (1884) Verhandlungen Ges Basel 7: 274-297 |
 | Vierter Nachtrag zum Katalogder herpetologischen Sammlung des Basler Museums F Müller (1885) Verhandlungen Ges Basel 7: 668-717 |
 | LVIII.—On a case of simous malformation in a snake G A Boulenger (1896) Annals And Magazine of Natural History 18: 399-399 |
 | Notes on snakes from Yucatán K E Schmidt and E W Andrews (1936) Field Mus. Nat Hist. Zool. Ser. 20: 167-187 |
 | Miscellaneous notes on Mexican Snakes E H Taylor and H M Smith (1938) University of Kansas Science Bulletin 25: 239-258 |
 | Herpetology Miscellany, No. II E H Taylor (1941) University of Kansas Science Bulletin 27: 105-132 |
 | The Mexican snakes of the genera Sonora and Chionactis with notes on the status of other colubrid genera W H Stickel (1943) Proc. Biol. Soc. Wash 56: 109-128 |
 | Review of the genera of Blennioid fishes related to Ophioblennius (1943) Journal of The Washington Academy of Sciences 33: 373-384 |
 | Summary of the collections of snakes and crocodilians made in M H M Smith (1943) Proc. U. S. Nat. Mus 93: 393-504 |
 | A brief review of the snakes of Costa Rica E H Taylor (1951) University of Kansas Science Bulletin 34: 3-188 |
 | Biological investigations in the Selva Lacandone, Chiapas, Mexico R A Paynter (1957) Bulletin of The Museum of Comparative Zoology 116: 191-298 |
 | The Lizards of Venezuela
(1960) Bulletin of The Museum of Comparative Zoology 122: 489-541 |
 | Type specimens of reptiles and amphibians in the United States National Museum (1961) Bulletin of the United States National Museum 220: 1-291 |
 | Catalogue of the Neotropical Squamata. Part I. Snakes James A Peters and Braulio Orejas-Miranda (1970) Bulletin United States National Museum 297: 1-347 |
 | On the trail of the Golden frog: with Warszewicz and Gabb in Central America J M Savage (1970) Proc. Calif. Acad. Sci. 38: 273-287 |