ALPHABETICAL INDEX. 



167 



2.— SYSTEMATIC NAMES. 



abacurus, Farancia, 123. 

 Coluber, 123. 

 Helicops, 123. 

 Hydrops, 123. 

 Abastor, 125. 



" erythrogrammus, 125. 

 Acontias atrofuscus, 150. 

 adamanteus, Crotalus, 3. 

 sestivus, Leptophis, 106. 



" Coluber, 106. 

 affinis, Pituophis, 66. 

 Agassizii, Nerodia, 41. 

 Agkistrodon, 17. 



" contortrix, 17. 



" mokason, 17. 

 alleghaniensis, Coluber, 73. 



" Scotophis, 73. 

 amabilis, Diadophis, 113. 

 aniaenus, Brachyorrhos, 129. 



" Coluber, 129. 

 amcena, Celuta, 129. 



" Calamaria, 129. 

 Anguis annulatus, 86. 



" flagelliformis, 98. 



" viridis, 106. 

 annectens, Pituophis, 72. 

 annulata, Dipsas, 155. 

 annulatus, Anguis, 86. 

 atmodes, Heterodon, 57. 

 atrofuscus, Acontias, 150. 



" Toxicophis, 150. 



" Trigonocephalus, 150. 

 atrox, Crotalus, 5. 



B. 



Bascanion, 93. 



'< constrictor, 93. 



'* flaviventris, 96. 

 Foxii, 90. 



" Fremontii, 95. 



" vetustus, 97. 

 bellona, Churchillia, 66. 



" Pituophis, CO. 



bipunctatus, Tropidonotus, 30. 

 Boa constrictor, 17. 

 Boidoe, ix, xi. 

 Bottaj, Charina, 154. 

 " Tortrix, 154. 

 Boylii, Ophibolus, 82. 

 Brachyorrhos amsenus, 129. 



c. 



cacodemon, Colubei', 55. 

 Calamaria amoena, 129. 



" elapsoidea, 123. 



" melanocephala, 155. 



" punctata, 112. 



'» striatula, 122. 



" tenuis, 116. 

 californioe, Coluber (Ophis), 153. 

 capite viperrens, Vipera, 59. 

 carinicauda, Homalopsis, 155. 

 catenifer. Coluber, 69. 



" Pituophis, 69. 

 Catesboei, Dryophis, 155. 

 caudisona, Viperra, 1. 

 Celuta, 129. 



" amoena, 129. 

 cenchris, Trigonocephalus, 17. 

 Charina, xi, 154. 



" Botta;, 154. 

 Chlorosoma, 108. 



" vernalis, 108. 

 Churchillia, 64, 66. 



" bellona, 65, 66. 

 Clarkii, Regina, 48. 

 clelia, Lycodon, 155.' 

 clericus, Ophibolus, 88. 

 coccinea, Coronella, 89. 



" Rhinostoma, 118. 

 coccineus. Coluber, 118. 



" Heterodon, 118. 

 cognatus, Heterodon, 54. 

 Coluber abacurus, 123. 



" ajstivus, 106. 



" alleghaniensis, 73. 



" amaenus, 129. 



" cacodemon, 55. 



" calligaster, 76. 



