372 



Murex, 62, 167. 

 Mussel, 206, 234. 

 Mya, 219, 297. 

 Mytilus, 206, 234. 

 Nassa, 61, 164. 

 Natica, 51, 124. 

 Neritina, 52, 129. 

 Neritine, 52, 129. 

 Nucula, 207, 243. 

 Nucule, 207, 243. 

 Nuramulina, 24, 34, 318. 

 Nuramuline, 24, 34, 318. 

 Odostoinia, 58, 123, 329, 345. 

 Paludina, 51, 122. 

 Patella, 66, 179. 

 Pearl-Mussel, 207, 241. 

 Pecten, 203, 222. 

 Pectuncle, 337. 

 Pectunculus, 337. 

 Periwinkle, 54, 135. 

 Pholas, 221, 304. 

 Phorcus, 53, 134. 

 Physa, 49, 111. 

 Piddock, 221, 304. 

 Pinna, 206, 239. 

 Pisidium, 209, 248, 338. 

 Planorbis, 49, 113. 

 Pleurotoma, 63, 171. 

 Polymorphina, 320. 

 Polymorphine, 320. 

 Polystomella, 23, 33, 315. 

 Psammobia, 216, 283. 

 Pupa, 47, 99. 

 Purpura, 62, 166. 

 Pyramid- Shell, 52, 131. 

 Rasp- Scallop, 204, 228. 

 Rimula, 65, 178. 

 Rissoa, 56, 146, 327, 341. 

 Rock-Shell, 62, 167. 

 Rock- Venus, 212, 268. 

 Rostellaria, 64, 173. 



INDEX TO THE GENERA. 



Rotalia, 24, 35. 

 Saxicava, 217, 284. 

 Scale- Oyster, 205, 230, 

 Scallop," 203, 222. 

 Sepia, 22, 28. 

 Sepiola, 22, 26. 

 Sepiole, 22, 26. 

 Skenea, 53, 134. 

 Slit-Limpet, 65, 177. 

 Slug, 43, 74. 

 Snail, 44, 79. 

 Solen, 216, 281. 

 Sphenia, 220, 300. 

 Sphaerostoma, 335. 

 Spindle- Shell, 62, 168, 

 Spiroloculina, 24, 36. 

 Spiroloculine, 24, 36. 

 Stylina, 343. 

 Succinea, 46, 95. 

 Tellina, 215, 279, 349. 

 Textularia, 25, 37. 

 Thracia, 219, 295. 

 Tooth-Shell, 72, 196. 

 Tornatella, 60, 158. 

 Trichotropis, 63, 170, 330. 

 Tritonia, 70, 195. 

 Trochus, 52, 131, 324. 

 Turbonilla, 326. 

 Turritella, 55, 140. 

 Vaginula, 322. 

 Vaginule, 322. 

 Velutina, 60, 160. 

 Vermiculum, 24, 36,319. 

 Vertigo, 47, 100. 

 Venerupis, 212, 268, 339. 

 Venus, 212, 263. 

 Vitrina, 46, 94. 

 Whorl -Snail, 47, 100. 

 Zone-Snail, 45, 87, 323. 

 Zonites, 45, 87, 323. 



GENERA OF MALENTOZOA. 



Acorn Shell, 354, 360. 

 Balanus, 354, 360. 

 Barnacle, 353, 356. 

 Cetopirus, 356, 365. 

 Clitia, 355, 365. 



Lancet-Barnacle, 354, 360. 

 Lepas, 353, 356. 

 Scalpellum, 354, 365. 

 Wart- Shell, 355, 365. 

 Whale- Barnacle, 356, 365. 



