INDEX. 



2i;:5 



PAG E 



Spiractinella Wrightii 165 ; VIII, i, i «-i h 



Sponge Beds 100 



Carboniferous 98,99,143 



Upper Limestone (Ireland) 101-103 

 Spongelia antiqua ... ... ... ... 147 



Sponges, Form of ... ... ... 45-47 



— General Characters . . . 44, 45 



— Geological Distribution ... 97-104 



— Size of 48 



— Systematic Position ... ... 85 



Sponges, Jurassic, Description of Genera and 



Species ... 195-250 



— Generically Distinct from 



Palaeozoic 



— Introduction 



— — Stratigraphical, List of 

 Sponges, Palaeozoic, General Features 

 Spongia 



— cymosa 

 ■ — floriceps 



— helvelloides . . . 



— inciso-lobata 

 - — pistilliformis 



Spongiae, Class 

 Spongilla 



— purbeckensis 

 Spongillidae, Family . . . 

 Spongitenkalk 

 Spongites 



— astrophorus 

 glomerata . . . 

 liasicus 

 rotula, var. biretiformis 



St. David's 



Stare Cove 

 Stauroderma ... 



— explanatum 

 Lochense 



Staurodermidae 

 Steganodictyum Carteri 



cornubicum 

 Stegendea 



Steinmann, Prof. G. 

 Stellispongia ... 



corallina 



— glomerata 



254 



189 



253 



94 



... 244 



... 213 



... 226 



243, 244 



... 114 



... 213 



... 86 



... 212 



193, 212 ; XIII vi, vi a 



... 212 



. 254 



233 



... 223 



227, 228 



... 231 



... 234 



97, 107, 112, 180 



193,213 



190, 191, 194, 202, 216 



202; X,T,vd 



202 



... 90 

 182 



182 



241 



33, 35, 115, 226 



226,227 



... 228 



228 



— semicincta et corallina 



226 



PAGE 



Stellispongia variabilis ... ... ... 22i> 



Stratigraphical Distribution Jurassic Species 251, 



252, 253 

 Palaeozoic Species 185 

 202, 246, 247 

 ... 214 

 192,212 

 18, 162 

 193,217,218,227,228,247 

 99, 160 

 . 194 

 92 



Streitberg 

 Stroud 



Sturminster Newton 

 Suess, Prof. E. 

 Suffield (Yorkshire) 

 Swaledale 

 Switzerland . . . 

 Sy cones 



Tate, E 17 



Taxoploca ... 207 



ovata 207 



Terrain a Polypiers ... ... 241 



Tetracladina, Family 88,116 



— Spicules ... ... ... 72 



Tetractinellid Spicules ... ... ... 67 



Tetractinellidae 87,149,208 



Disposition of Spicules in . . . 79 

 — • Jurassic, List of ... ... 251 



— Palaeozoic, List of ... ... 185 



Tetragonia 



Danbyi 

 Tetrasmila 

 Textispongia ... 



f oliata . . . 

 Tholiasterella ... 



— coinpacta 



119, 126, 128 

 126, 128 

 ... 245 

 ... 198 



199 



96, 99, 101, 134, 168 

 .. 171; VII, iii, iiia 

 crassa 171 ; VIII v, v a, IX ii, ii a, 



ilb 



— gracilis ... 170 ; VII i, i a-i g 



— Youngi . . . 169 ; VII ii, ii a- 



Thurmann, J., et Etallon, A. 14 



Thurnau 233 



Tomes, E. F., 190, 194, 216, 218, 222, 233, 236, 



237, 239, 247 

 Tragos 



— Binneyi 



— semicirculare 



— Tunstallensis 

 Trautschold, H. 



TreGill 



Treloaran 





206, 



243 

 183 

 183 

 183 





19, 26, 29 







112 



. 143, 



145, 150, 

 M M 



152 



