246 



INDEX. 



Page 



SeypMa paradoxa, Miinst "* 



— paralMa, Goldf 94 



pcrpkxa, Quenst 1"^ 



pertusa, Goldf 93, 96 



pistilliformis, Mich 165 



poJymorpha, Laube 1*51 



polyummata, Goldf •'•^ 



jnuictafa, Goldf. -04 



pyi'if<»'»i>s, Goldf l-'5 



radiata, Reusa 108 



ramosa, Roem 169 



reticulata, Goldf 93 



nigosa, Goldf. 123 



rugosa, var. infundibuUformis, Goldf 123 



subctespitosa, Miinst 165 



subseriata, Effim 95 



tenuis, Quenst 101 



testa-Jlonim, Quenst 33 



tetrayona, Goldf. 182 



texturata, Goldf. 96 



verrucosa, Goldf. 97, 108 



Scytalia, ZM 13, 44 



fastigiata, Lee 44 



radiciformis, Phill 44 



terebiata, Phill 45 



Sebaigasia, Steinm 10 



Seliscothon, Zitt 13, 31 



explanatus, Rcem 32 



giganteus, Iio;m 33 



Mantelli, GoMf. 33 



planus, Phill. 33 



sp 33 



testa-florum, Quenst 33 



Serimla paralh-la, M'Coy 151 



Se3tr(jcladia, Hinde 12, 117 



fui'catus, Hinde H' 



Sestrodictyon, Hinde 101 



couvolutum, Hende 102 



Sestrostomella, Zitt 11, 187 



clavata, Hinde 188 



cribvata, Quenst 187 



rugosa, Hinde 188 



Siliceous spicular structure dissolved 8 



Siliceous spicular structure replaced by calcite 7 



Siliceous spicules replaced by peroxide of iron 6 



Siliceous sponges enclosed iu flint 5 



Silurian species. List of 2.^3 



Siphonia, Goldf. 12, 63 



acatdis, Mich 69 



cervieomis, Goldf. 116 



clava, Lee 42 



cratera, Rcem 93 



excavata, Goldf J- 



ficus, Goldf. 66, 71 



imbricato-articidata, Rosm 92 



incrassata, Goldf. 65 



Kbnigi, Mant 65 



lobata, Mant 67 



Page 



Sipkonia lycoperdioides, Mich 180 



ocellata, Roem 42 



prcemorsa, Goldf. 92 



jmnctata, Miinst 42 



pyriformis, Goldf. 56, 64 



radiata, Quenst 56 



sp. 



tulipa, Zitt 64 



Websteri, Quenst 64, 70 



Siphonocadia aspera, From 181 



clavata, Rcem 168 



crassa. From 177 



elegans. From 178 



spica, Rcem 45 



sulcifera, Roem 60 



te.xia, Roem 55 



truncata. From 168 



Sollasia, Steimn 10 



Spheeroccelia, Steinm 171 



Michelini, Steimn 172, 173 



Sphferolites Nichohoni, Hinde 57 



Sphenaulax, Zitt 11, 95 



costata, Goldf 95, 108 



Spongia capitata, Phill 31 



clavarioides, Lamx 166 



convoluta, Quenst 38 



cribrosa, PhiU 113 



cymosa, Lamx 165 



fastigiata, Lee 44 



Mvelloides, Lamx 193 



inciso-lobata, Roem 92 



lagenaria, Mich 168 



mamillifera, Lamx 166 



marginata, PhiU 36 



multidigitafa, Mich 183 



Peziza, Mich 194 



pistillifoi-mis, Lamx 165 



jikma, PhiU 31 



radiciformis, Phill 44 



ramosa, Mant 48 



stellata, Lamx 186 



stellatim-sulcata, Roem 92 



terebrata, Phill 45 



Totvnsendi, Morr 144 



umbellata, Mich 186 



SpongUla, Lam 3, 11 



Purbeckensis, Young 21 



Spongites alatus, Quenst 190 



artieidatus, Quenst 125 



astrophorus alatus, Quenst 180 



caloporus, Quenst 180 



cornucopia, Quenst 180 



auriformis, Quenst 30 



binoculatus, Quenst 191 



claihrata, Quenst 94 



clavellatus, Mant 79 



costatus, Quenst 190 



cribrattis, Quenst 187 



