102 



INDEX OF SPECIES. 



Semele 



veutricosa, 203, 303. 



venusta, 23, 29, 154, 203, 245, 

 303, P 28. 

 Senectus 



funiculatus, 4. 



sqiiamigerus, 24, 154. 

 Septifer 



bifurcatus, 26, 129, 151. 



Cumiugianus, 106, 309. 

 Serpula 



iucurvata, X 436. 



recta, X 425, X 436. 



regnlaris, 42. 

 Serpulorbis 



Paiiamensis, 42. 



squamigerus, 23, 27, 100, 140. 

 Serripes 



Groenlandicus, 70, 88, 128, 168. 



Laperousii, 128. 

 Serrula 



Carpenteri, 287. 

 Sigaretus 



coriaceus, 176, 216. 



debilis, 27, 228, 233, 337, 

 352, U 207. 



fenestratus, 259, P 408. 



inflatus, 275. 



niillegranus, 170, P 408. 



scopulosus, 367, 



tessellatus, 294, P 407. 

 Siliqua 



lucida, 120, 195, V 211. 



Nuttallii, 120, 124, 195, V 211. 

 Siliquaria 



gibba, 39. 

 Simnia 



patula, P 375. 

 Sipho 



terebalis, 73. 

 Siphonalia 



anomala, 152. 



fuscotincta, 23, 149, 288. 



Kellettii, 74, 149, 169, 289. 



modificata, 152. 



pallida, 28, 49, 112. 



Siphonaria 



sequilirata, 107, 112, 151, 152, 



162, 0251,0290, 03i6,PiS4. 

 sequilorata, O 290, P 550. 

 amara, 48, 162, 290. 

 characteristica, 197, 185, 



276, 282, 290. 

 costata, 185, 276, 316. 

 deuticulata, 239, P 546. 

 ferruginea, 31. 

 gigantea, 229. 

 gigas, 24, 152, 197, 174, 



276, 282, 290, 316, O 



359, T 168, U 205. 



var. O 276. 



lateralis, 133, 170, 238. 

 lecanium, 24, 31, 107, 162, 256, 



208, 225, 235, O 251, 



290, 316, P 182, P 1S4, 



P 535, P 536. 



far. 239. 



var. paluiata, 251, P 



183. 

 leviuscula, 152. 

 maura, 24, 31, 162, 185, 



276, O316. 

 palmata, 24, 31, 107, 162. 

 pentegoniostoma, P 212. 

 pica, 37, 197, 276, 2S5, 



316. 

 scutellum, 203, 316, 359. 

 tbersites, 47, 113, 133, 162, 170, 



237. 

 Tiistensis, 47, 113. 

 Siphonium 



for. centiqnadra, 42. 

 effusum, 42. 

 lituella, 42. 

 margaritarnm, 42. 

 megamastum, 42. 

 var. spinosum, 44. 

 subcrenatum, 44. 

 Sistrum 



carbonari um, 25, iii. 

 (?ochrostoma, var.) rnfoDO- 



tatum, 105, 220. 



