. . "Połozowate Stany Zjednoczone Południowe." . . "Stany Zjednoczone. Government Printing Office." . . "Lampropeltis (Colubridae, Serpentes)" . . "ZOOLOGY." . . "Serpientes." . . . . "A revision of the king snakes genus Lampropeltis"@en . . . "A revision of the king snakes; genus Lampropeltis" . . . "A Revision of the King Snakes : \"Genus lampropeltis\", by Frank N. Blanchard" . . . "The descriptions and discussions in this bulletin have brought out the fact that the genus Lampropeltis is naturally divided into three main groups, of closely related forms (exclusive of two forms of doubtful relationships, mexicana and alterna). Two (the Getulus an Calligaster groups) are more closely allied to each other than either to the third, and the latter (Triangulum group) is composed of at least three minor groups, representing different degrees and kinds of differentiation, and different periods of dispersal." . . . . "A revision of the king snakes: genus Lampropeltis" . . "Revision of the kingsnakes : genus Lampropeltis" . . "A revision of the king snakes : genus Lampropeltis" . "The snakes of the genus Lampropeltis have long been in a state of great confusion from the systematic standpoint. Only about one-third of the forms now recognized have been at all clearly defined; of the rest some have been known from only a few specimens each, some have been unnaturally divided among several forms, and others have been included under a single name." . . . "Revision of the king snakes genus Lampropeltis"@en . "A revision of the king snakes: genus lampropeltis"@en . . . . . . . . . . . . . . .