543 



pag. 



Spiricella .... 189.490 



Spirilla — 



Spiroglyphus .... — 



Spirorbis — 



Spirula 104 



Spirulacea — 



Spirulirostra . . . . 105 



Spisula 310 



Spondylobolus .... 490 

 Spondylus . . . . 376.21 



Spongiobranchaea . . . 297 



Stalagmium 490 



Staurodon — 



Steganotoma .... — 



Steira 284 



Slellaria 490 



Stenoceras 113 



Stenopus 242 



Stenosemus 500 



Stenostoma Spix . . . 490 



Stenostoma Eaf. . . . 491 



Stenotrema — 



Stephanopus .... — 



Stephyllia — 



Sterna 245 



Stilifer 278 



saug er- 277 



Sloastoma 261 



Stomalella 213 



Slomaiia . . . . 181. 212 



Stomax — 



Stomodonta 491 



Stramonita — 



Straj)aroliis — 



Streblopteria .... — 



Strephona — 



Strepsidura — 



Slreptaxis 246 



Streptostyla ..... 500 



Slrigalella 491 



Strigilla 308 



Slringocephalus . . . 393 



Strobylus 250 



Strombacca 131 



Strombidea 491 



Slrombus Adaas, . .131,491 



