102 



INDEX OF SPECIES. 



Semele 



ventricosa, 203, 303. 



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



303, P 28. 

 Senectus 



funiculatus, 4. 



sqnamigerns, 24, 154. 

 Septifer 



bifurcatus, 26, 129, 151. 



Cnmiiigianus, 106, 309. 

 Serpula 



incurvata,*X 436. 



recta, X 425, X 436. 



regularis, 42. 

 Serpulorbis 



Panamensis, 42. 



squamigerus, 23, 27, 100, 140. 

 Serripes 



Grcenlandicus, 70, 88, 128, 168. 



Laperousii, 128. 

 Serrula 



Carpenter!, 287. 

 Sigaretus 



coriaceus, 176, 216. 



debilis, 27, O 228, O 233, 337, 

 352, U 207. 



fenestratus, 259, P 408. 



inflatus, O 275. 



millegranus, 170, P 408. 



scopulosus, 367. 



tessellatus, 294, P 407. 

 Siliqua 



lucida, 120, O 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 



fequilirata, 107, 112, 151, 152, 

 162, 251, 290, 0316, P 184. 



sequilorata, 290, P 550. 



amara, 48, 162, 290. 



characteristica, 197, 185, O 

 276, O 282, 290. 



costata, 185, 276, 0316. 



denticulata, O 239, P 546. 



ferruginea, 31. 



gigantea, 229. 



gigas, 24, 152, 197, 174, 

 276, 282, 290, 316, 

 359, T 1 68, U 205. . 



var. O 276. 



lateralis, 133, 170, 238. 



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

 O 208, 225, 235, 251, 

 290, 316, P 182, P 184, 



P 535, P 536. 



var. 239. 



: t-ar. palmata, 251, P 



183. 



leviuscula, 152. 

 manra, 24, 31, 162, 185, 



276, 316. 



palmata, 24, 31, 107, 162. 

 pentegoniostoma, P 212. 

 pica, 37, 197, O 276, 285, 



316. 



scutellum, 203, 316, 359. 

 thersites, 47, 113, 133, 162, 170, 



237. 



Tristensis, 47, 113. 

 Siphonium 



var. centiqnadra, 42. 

 effusum, 42. 

 lituella, 42. 

 margaritamm, 42. 

 xnegamastum, 42. 

 var. spinosum, 44. 

 snbcrenatum, 44. 

 Sistrum 



carbonarium, 25, in. 

 (fochro.stoma, var.') rufono- 



tatum, 105, 220. 



