VI LIST OF ILLUSTRATIONS. 



Page. 

 Fig. 34. Color pattern of Lampropeltis getulus getulus, showing approach to 



pattern of L. g. niger To face 112 



35. Typical color pattern of Lampropeltis getulus getulus To face 112 



36. Typical color pattern of Lampropeltis getulus floridana To face 112 



37. Typical color pattern of Lampropeltis getulus brooksi To face 112 



38. Diagram of the relationships of the forms of the getulus group 115 



39. Typical pattern of Lampropeltis calligaster 118 



40. Color pattern of Lampropeltis calligaster, showing the striped effect 



commonly exhibited by dark individuals 119 



41. Map showing locality records for Lampropeltis calligaster 122 



42. Color pattern of I^ampropeltis rhombomaculata 129 



43. Map showing locality records for Lampropeltis rhombomaculata 131 



44. Diagram showing variation in number of ventral plates in Lampro- 



peltis polyzona and L. micropholis 144 



45. Map showing locality records for Lampropeltis polyzona 146 



46. Map showing locality records for Lampropeltis micropholis 150 



47. Map showing locality records for Lampropeltis triangulum nelsoni 156 



48. Map showing locality records for Lampropeltis triangulum annulata . . 161 



49. Map showing locality records for Lampropeltis triangulum gentilis. . . 167 



50. Diagram showing interrelationships between Lampropeltis triangulum 



annulata, L. t. gentilis, L. t. amaura, and L. t. syspila 169 



51 . Map showing locality records for Lampropeltis triangulum amaura . . . 174 



52. Lampropeltis triangulum syspila, showing typical color pattern of 



anterior end of body 181 



53. Map showing locality records for Lampropeltis triangulum syspila 182 



54. Lampropeltis triangulum triangulum, showing typical pattern of 



anterior end of body 191 



55. Map showing locality records for Lampropeltis triangulum triangulum . 195 



56. Diagram showing geographic variation in number of ventral plates in 



Lampropeltis triangulum triangulum 198 



57. Diagram showing geographic variation in number of dorsal blotches 



in Lampropeltis triangulum triangulum 201 



58. Lampropeltis elapsoides elapsoides, showing typical pattern of anterior 



end of body 208 



59. Map showing locality records for Lampropeltis elapsoides elapsoides. . 210 



60. Map showing locality records for Lampropeltis elapsoides virginiana. . 217 



61. Map showing locality records for Lampropeltis multicincta 224 



62. Map showing locality records for Lampropeltis pyrrhomelaena 232 



63. Map showing distribution of the various forms of the triangulum group . 238 



64. Lampropeltis polyzona, typical color pattern To face 242 



65. Lampropeltis triangulum nelsoni, typical color pattern To face 242 



66. Lampropeltis triangulum annulata, typical color pattern To face 242 



67. Lampropeltis triangulum amaura, a common color pattern of this 



form To face 242 



68. Lampropeltis triangulum syspila, typical pattern of this form. . To face 242 



69. Lampropeltis triangulum triangulum, typical color pattern To face 242 



70. Lampropeltis micropholis, typical color pattern in Ecuador — in 



Colombia the heavily spotted intervals are narrower To face 242 



71. Lampropeltis pyrrhomelaena, typical color pattern To face 242 



72. Lampropeltis triangulum gentilis, typical color pattern To face 242 



73. Lampropeltis elapsoides elapsoides, typical color pattern To face 242 



74. Lampropeltis ruthveni, color pattern of type specimen To face 242 



75. Lampropeltis multicincta, typical pattern To face 242 



76. A diagrammatic presentation of the relationships of the forms of the 



triangulum group 245 



77. Lampropeltis mexicana, showing color pattern 246 



78. Lampropeltis alterna, showing style of color pattern 248 



