INDEX 



Ablabes occipitalis, 46. 

 Achirhina, 142, 143. 



defilippii, 142. 

 Acontias leucostoma, 178. 

 acuminatus. Coluber, 102. 



Oxvbelis, 102, 204, 206-216. 

 acuta, toluca lineata, 143, 144, 212. 

 acutirostrum, Adelphicos quadrivirga- 



tus, 30. 

 acutus, Ogmius, 144. 

 Adelophis, 7, 10, 13, 153. 



copei, 153, 207-209. 

 Adelphicos, 8, 10, 15, 29, 30. 



quadrivirgatum, 30. 



quadrivirgatus acutirostrum, 30. 



quadrivirgatus quadrivirgatus, 30, 

 204, 210, 215. 



quadrivirgatus sargii, 30, 31, 204. 



quadrivirgatus visoninus, 30, 31, 

 204, 214. 



veraepacis nigrilatus, 30, 31, 204. 



veraepacis veraepacis, 30. 

 adnexus, Tretanorhinus variabilis, 145. 

 Aechmophrys, 184. 

 aemula, Procinura, 112, 205. 



Rhadinaea, 115, 116, 207, 209, 211. 

 acmulus, Scolecophis, 112. 

 aeneus, Dryinus, 101. 



Lpptophis diplotropis, 90. 

 aequalis, Elapochrus, 110. 



Liophis elapoides, 110. 



Pliocercus, 109, 110. 



Sonora, 127, 128. 

 aesculapii, Coluber, 200. 



Erythrolamprus, 200. 

 aestivus, Coluber, 100, 101. 



Cvclophis, 101. 



Opheodrys, 16, 101, 210, 214. 

 affinis, Elaps, 171. 



Elaps fulvius, 171. 



Hvpsiglena, 73, 208, 216. 



Micrurus affinis, 171, 211, 212, 215. 



Pituophis catenifer, 105, 106, 205, 

 213. 



Pituophis savi, 106. 



Pityophis, 106. 

 agalma, Lampropeltis, 85. 



Lampropeltis multicincta, 85. 



Lampropeltis zonata, 79, 85, 203. 

 Agkistrodon, 6, 8-10, 12, 177. 



bilineatus, 6, 177, 178,. 204, 206- 

 211, 213, 216. 



1 rov ni, 181. 



mokeson, 177. 



mokeson pictigaster, 177, 178. 



piscivorus, 177. 



piscivorus leucostomus, 177, 178. 



Agriotes, 131. 

 ahaetulla, Coluber, 90. 



Leptophis, 90. 

 Ahaetulla diplotropis, 90. 



modesta, 91. 

 albifrons, Leptotyphlops, 24. 

 albocinctus, Leptognathus, 149, 151. 

 albonuchalis, Scaphiodontophis, 28, 204, 



214. 

 aliemis, Elaps, 171. 



Micrurus affinis, 171, 172, 204, 211, 

 214. 

 alterna, Lampropeltis, 77, 79, 205. 



Ophibolus, 79. 

 Amastridium, 8, 10, 14, 31. 



sapperi, 31, 204, 210. 



veliferum, 31. 

 Amblymetopon, 62. 



variegatum, 62, 63. 

 anahuacus, Crotalus triseriatus, 186, 



196, 206, 208, 209, 212, 215. 

 Ancistrodon bilineatus, 177. 

 andrewsi, Pliocercus, 109, 110, 216. 

 Anguis lumbricalis, 18. 



platura, 176. 

 angustirostris, Eutaenia, 161. 



Thamnophis, 159, 161, 205. 



Xenodon, 153. 

 annectens, Pituophis, 106. 



Pituophis catenifer, 106, 203. 

 annularis, Galedon, 149, 152. 

 annulata, Lampropeltis', 82. 



Lampropeltis triangulum, 79, 82^ 

 83, 205, 210, 214. 



Sonora occipitalis, 35. 

 annulatum, Lamprosoma, 35. 



Tropidoclonium, 150. 

 annulatus, Chionactis occipitalis, 35. 



Coluber, 86. 



Enicognathus, 28. 



Geophis, 149, 150, 152. 



Tropidodipsas sartorii, 150, 152j 

 204. 



Tropidogeophis, 152. 

 annulifera, Tropidodipsas, 201. 

 anocularis, Geophis, 66, 211. 

 anomala, Storeria dekayi, 156, 215. 

 Anomalepis aspinosus, 200. 



dentatus, 200. 



mexicanus, 200. 

 Anoplophallus, 86. 

 anthonyi, Bascanion, 94. 



Diadophis, 47. 



Diadophis amabilis, 47, 203. 



INIasticophis, 93, 94, 206. 

 anthracops, Sibynomorphus, 201. 



217 



