234 



BULLETIN 18 7, UNITED STATES NATIONAL MUSEUM 



roseofusca, Lichanura, 26. 



Lichanura roseofusca, 25, 26, 203. 

 rostralis, Elapoides, 69. 



Geophis, 66, 69, 211. 

 rozellae, Thamnophis, 168. 

 ruber Crotalus, 188, 194, 204. 



Crotalus adamanteus, 194. 

 rubidus, Drvmarchon corais, 54, 56, 



206-209, 211, 213. 

 rubra, Tantilla, 136, 141, 210-213. 

 rubricata, Tantilla wilcoxi, 136, 141, 



205, 210, 213. 

 rufipunctatum, Chilopoma, 158, 165. 

 rufipunctatus, Thamnophis, 156, 158, 



161, 165, 205, 206. 

 ruspator, Ficimia, 62, 63, 207, 209. 

 ruthveni, Geophis, 65. 



Lampropeltis, 79, 82, 209. 



Masticophis, 98. 



Masticophis taeniatus, 92, 98, 210, 



212 214. 

 Thamnophis, 159, 166, 211. 



rutilis, Pituophis catenifer, 106. 

 rutiloris, Eutaenia, 166. 



Thamnophis sauritus, 166. 



sallaei, Geophis, 66, 69, 211. 

 Salvadora, 8-10, 17, 121. 



bairdii, 122, 123, 206, 208-210, 212, 



215, 216. 

 bogerti, 122, 123, 211. 

 grahamiae, 121-123, 205, 213. 

 grahamiae grahamiae, 123. 

 grahamiae lineata, 125. 

 grahamiae virgultea, 124. 

 hexalepis celeris, 123, 124, 213. 

 hexalepis deserticola, 123, 124, 205. 

 hexalepis hexalepis, 122, 123, 203, 



213. 

 hexalepis virgultea, 122, 124, 203. 

 intermedia, 124. 

 intermedia intermedia, 122, 124, 



207. 

 intermedia richardi, 122, 124, 212. 

 lemniscata, 122, 125, 204, 207, 211. 

 lineata, 122, 125, 205, 206, 208, 210, 



213 214. 



mexicana, 122, 125, 20&-210, 212. 



pulcherrima, 125. 

 salvini, Crotalus, 195. 



Crotalus scutulatus, 189, 195, 212, 

 214. 



Spilotes, 131. 

 sanniolus, Dipsas, 15, 16, 50, 51, 216. 



Leptognathus, 51. 



Mesopeltis, 49, 51. 



Sibon, 51. 

 sapperi, Amastridium, 31, 204, 210. 



Mimometopon, 31. 

 sargii, Adelphicos quadrivirgatus, 30, 

 31, 204. 



Rhegnops, 31. 

 sartorii, Tropidodipsas, 152. 



Tropidodipsas sartorii, 150, 152, 

 204, 213-216. 

 saurita. Coluber, 158. 



sayi. Coluber, 107. 



Pituophis, 107. 



Pituophis catenifer, 105, 107, 205, 

 210, 214. 



Pituophis sayi, 107. 

 scalaris, Eutaenia, 167. 



Thamnophis, 167. 



Thamnophis scalaris, 160, 167, 208, 

 209, 212, 215. 

 scaliger, Thamnophis scalaris, 160, 167, 

 206-209, 212-214. 



Tropidonotus, 167. 

 Scaphiodontophis, 8, 10, 14, 28. 



albonuchalis, 28, 204, 214. 



carpicinctus, 28, 29. 



cvclurus, 28, 29, 214. 



nothus, 28, 29, 215. 



sumichrasti, 28, 29, 210. 

 schistosa, Rhadinella, 119, 120, 215. 

 schistosus, Helicops, 201. 

 schlegeli, Bothrops, 183. 

 schlegelii, Bothrops, 179, 183. 



Trigonocephalus, 179, 183. 



Trimeresurus, 183. 

 schlegelii, Botriechis, 183. 

 schmidti, Coniophanes, 38, 42, 216. 



Lampropeltis triangulum, 79, 84, 

 208, 210. 



Pliocercus elapoides, 110, 111, 204, 

 216. 

 schotti, Masticophis, 98. 



Masticophis taeniatus, 93, 98, 205. 

 sclerotica, Elaphe, 6, 60. 

 Scolecophis aemulus, 112. 



atrocinctus, 128. 



fumiceps, 140. 



scytalinus, 36. 

 Scotophis laetus, 59. 

 scutulata, Caudisona, 194. 

 scutulatus, Crotalus, 194. 



Crotalus scutulatus, 187, 189, 194, 

 205, 206, 213, 214, 216. 

 scytalinus, Scolecophis, 36. 

 sebae, Ninia, 99, 100. 



Ninia sebae, 99, 100, 204, 211, 214, 

 215. 



Streptophorus, 100. 

 segregus, Leptotyphlops humilis, 20, 22, 



205. 

 semiannulata, Sonora, 126, 129, 130. 



Sonora semiannulata, 127, 129, 130. 

 semiannulatus, Geophis, 65, 70, 206, 207. 

 semicinctus, Leptognathus, 152. 



Pliocercus elapoides. 111. 

 semicornutus, Crotalus, 185, 195, 205. 

 semidoliatum, Rabdosoma, 65. 



Rhabdosoma, 70. 

 semidoliatus, Geophis, 66, 70, 207, 211, 



215. 

 semilineatum, Bascanium, 94. 

 semilineatus, Masticophis, 94. 

 semirutus, Trimorphodon biscutatus, 



146, 206, 207, 209. 

 septemvittata, Lemnophis, 201. 

 septemvittatum, Calopisma, 201. 



