LOWER CALIFORNIA REPTILES 35 



50. Plestiodon lagunensis 



51. Euchirotes biporus 



52. Siagonodon humilis 



53. Lichanura roseofusca 



54. Lichanura trivirgata 



55. Coluber flagellum piceus 



56. Coluber lateralis 



57. Coluber aurigulus 



58. Salvadora hexalepis 



59. Phyllorhynchus decurtatus 



60. Elaphe rosalias 



61. Arizona elegans 



62. Pituophis catenifer annectens 

 (Pituophis catenifer deserticola)* 



63. Pituophis vertebralis 



64. Lampropeltis getulus boylii 



65. Lampropeltis getulus conjuncta 



66. Lampropeltis getulus yumensis 



67. Lampropeltis californise 



68. Lampropeltis nitida 



69. Rhinocheilus lecontei 



70. Hypsiglena ochrorhynchus ochrorhynchus 



71. Natrix valida 



72. Thamnophis ordinoides vagrans 



73. Thamnophis ordinoides hammondii 

 (Thamnophis mardanus)* 



74. Sonora episcopa 

 (Sonora occipitalis)* 



75. Chilomeniscus cinctus 



76. Chilomeniscus stramineus 



77. Tantilla planiceps 

 (Tantilla eiseni)* 



78. Trimorphodon lyrophanes 



* Not yet collected, but almost certain to be found. 



