IXDEX. 



333 



scalaris, 112, 241. 



scaldiana, 253. 



scaldianum, 253. 



Scarabus, 189. 



scaturiginum, 207. 



Scutibranchiata, 9, 41. 



Scutifera, 74, 75. 



scutulum, 55, 56. 



secale, 165, 166. 



Segmenting 198, 244, 245, 246. 



Seininulum, 140. 



Sepia, 2. 



septemdentata, 172. 



Seraphia, 190. 



sericea, 134, 135, 136. 



Serpula, 104, 105. 



serpuloides, 37. 



sexdentata, 161, 171, 172. 



sexdentatus, 170, 171, 172. 



Shell, formation of the, 4. 



Sheppardi, 243, 240. 



siculus, 203. 



simile, 27. 



similis, 27, 28, 171, 184, 187, 233. 



simplex, 219, 



sinuata, 277. 



sinuatum, 269. 



sinuatus, 222, 277. 



sinuosa, 272. 



sinuosus, 220, 222. 



Siphonaria, 217. 



Siphonophora, 247. 



Skenea, 37. 



solennis, 203. 



solida, 280. 



Somershamensis, 235. 



Sowerbii, 83, 84. 



speciosus, 207. 



sphaerica, 26. 



Sphajrium, 252, 253, 254, 255, 257. 



Sphyradium, 168, 169. 



spinulosa, 139. 



spirorbis, 36, 231, 235, 243. 



spirula, 144. 



splendidula, 155. 



stagnale, 206. 



stagnalis, 64, 65, 197, 202, 206, 208, 



210, 228, 272. 

 Stagnicola, 206, 208, 211. 

 stagnicola, 253, 257. 

 stagnorum, 28. 

 Stenopus, 90. 



Stomodonta, 162, 164, 166, 168, 



169, 170, 172, 176, 185. 

 Streptaxis, 53. 

 striata, 123, 124, 127, 268. 

 striatula, 95. 

 striatulus, 96. 

 striatus, 19, 220. 

 strigata, 121, 123. 

 striolata, 133, 208. 

 Strombi, 160. 

 Strombiformis, 186. 

 Styloides, 155, 158, 159. 

 subalbida, 125. 

 subcylindrica, 155. 

 subcylindricus, 155. 

 subfuscus, 69, 71. 

 subglobosa, 109. 

 Submytilacea, 249. 

 subopaca, 227. 

 subponderosa, 273. 

 subrufescens, 132. 

 Subsilentia, 2. 

 substriata, 171. 

 subulatus, 211. 

 subviridis, 139. 

 succinea, 147. 

 Succinea, 64, 66, 73, 74, 96, 101, 



145, 146, 147, 148. 

 succineus, 67, 147. 

 succino colore, 80. 

 sulcata, 272. 

 sylvatica, 108. 

 sylvaticus, 81. 

 Symphonota, 272. 

 Syncera, 23. 



Tachea, 103, 106, 108. 



Tachychlamys, 96. 



Tandonianum, 267. 



Tapada, 147, 148. 



Teba, 99, 121, 123, 124, 129, 130, 



132, 134, 136, 139. 

 Tellina, 252, 253, 257, 264, 267, 268. 

 tenella, 193. 

 tenellus, 83, 242. 

 tenera, 91. 

 tentaculata, 26. 

 tentaculatus, 26. 

 tenuis, 96. 



terebra, 119, 240, 241. 

 tergestina, 123, 

 terrestre, 158. 



