320 



INDEX OF GENERA AND SPECIES. 



Page. 



Spiionema teuuilinoata 48, 103 



Spirorbis 106,153 



? dickhauti 153 



helix 51 



Spimlasa rotula 49 



Spondylidie 266 



Spondylus 217,266 



dumosus 222 



ecbinatna 47 



estrallensis 315 



estrellanua 317 



gregalis 266 



Spongite 41,43,56,58,91 



Spongiolites 203 



SpongolitLis acicularis 229 



aapora 229 



fustis 229 



luesogonyla 229 



Stagnicola 106 



Stralagmium concentricuni 220 



Stauroneis baileyi 229 



semen 229 



Stavelia 98 



Steganorriuus 40, 43, 59 



araneolua 42 



pentagonus 42, 59 



aculptus 42 



Stephauodiscus ? 203 



Stenaatei- 78 



gvandis 69, 78 



Steuophora colamnaris 52 



Stenotheca 189 



acadica 198 



elongata 189 



Stramonita 212,214 



petrosa 313, 214 



Strapairollus 25, 2C, 30, 42, 44, 46, 74, 87, 195, 258 



? 258 



Straparollas cornudaniis 358 



(Euomplialns) miuucsotensis. .. 350 



pemodosus 65, 87 



rngosus 74 



subquadratus. ..65, 87 



siibrugosus 87 



lens 42 



iiewai-kensis 195 



plauidorsatus 44 



siiuilia 36,44 



var. planus 26, 44 



nrabilicatus 46 



Streblopteria 45, 196 



similis 196 



? tennilineata 45 



Strephona 212, 214 



pedroana 313,214 



Strepsidura 237 



conybearii 222 



Streptacis 86 



■wbitfieldi 67, 86 



Streptelasma 155 



coruiculum 155 



Stroptoihyufbus. . 110, 119, 177, 190, 192, 235, 245, 257 



clieniuiigeusis 192 



equivalvis 235 



inflatus 116,235 



Page. 



Streptorhyncus lens 119 



minor 190 



occidentalis 345 



(Orthisimia) shumardianua 257 



pyramidalis 345 



umbracnliim 245 



Striarca 98 



Striatopora 56,119,156 



carbonari 119 



linuaeana 156 



misaouriensis 56 



Stricklandinia 57,91, 135 



castellana 138 



davidsoni 152 



deformis 64, 91 



elongata var carta 57 



Stricklandinia salteri 152 



Strobilocystites 138 



calvini 138 



Stromatopora 156, 192 



Strombua 208 



pervetus 308 



pustulifera 150 



Stromomeua rbomboidalia 130 



Stropbalosia .*...- 257 



( Auloateges) guadalupensis . . . 257 



Strophodonta 148,192,235,250 



arcuata, 192 



beckii. ., 36 



cauace 235 



calvini 192 



? costata 350 



demissa 148,192 



beadleyana 36 



inequiradiata 192 



iowenais 350 



parva 350 



l)atersoni 192 



perplana 192 



punctulifera 192 



Strophites grandjeva 107 



Strophomena 56, 57, 58, 62, 78, 89, 126, 129, 130 



148, 190, 192, 234, 235, 248 



altemata 148 



angulata? 248 



couvexa 347 



deltoidea 248 



filitexta .'. 130 



Fontinalia 136,129 



(Heniopronites) crenistria 89 



filitexta 78 



nutans 78 



plano-convexa 78 

 planumbona.. 78 



plicata 78 



ainuata 78 



sulcata 78 



nemea 190,334 



nasuta? 248 



plaunmboua 148 



rbomboidalia 36, 58, 78, 192, 235 



aerica ? 248 



(Strophodonta) 58 



cavumboua... 57 

 demissa 62 



