INDEX. 



517 



SpiriaUs, 347, *361. 

 Spirifera, *371. 

 Spiriferidae, ♦371. 

 Spiriferina, *372. 

 SpiTigera, 373. 

 Spiroglyphus, 249. 

 Spirula, 9, *178. 

 Spimlidae, *178. 

 Spirulirostra, *177. 

 Spisvla, 477. 

 Sporulylotolus, 387. 

 Spondylolites, 183. 

 Spondylus, 7, 30, 35, 38, 55, 



*413. 

 Spongaria, 180. 

 Spongiobrancheea, *354. 

 Sporadic species, 51. 

 Sportella, 457. 

 Stalagmium, 427. 

 Steganostoma, 308. 

 Stenoceras, 197. 

 Stenogyra, *293. 

 Stenopus, *289. 

 StUifer, 9, *241. 

 Stoastoma, *310. 

 StomateUa, *267. 

 Stomatia, *268. 

 Stomatia, 236. 

 Straparollus, 267. 

 Strepf^Lona, 227. 

 Strepsidura, 218. 

 Streptaxis, *289. 

 Streptorhynchus, 380. 

 Striati, *189. 

 Strigilla, 480. 

 Strobilus, 294. 

 Strombidae, *210. 

 Strombus, 31, *210. 

 Strophalosia, *385. 

 Stropheodonta, 381. 

 Strophomena, *380. 

 Strophostoma, 308. 

 StructTire of shell, Brachi- 



opoda, 360. 

 Struthiolaria, *246. 

 Stylina, 241. 

 Styliola, 349. 

 Stylocheilus, *321. 

 Stylopsis, *239. 

 Styloptygma, *241. 

 Sub-clymenia, 190. 

 Sub-generic area, 52. 

 Sub-spiral operc.,208. 

 Subula, 220. 

 Subulina, 292, 

 Succinea. *290. 

 Suessia, *372, 

 Sulco-buccinum, 21?. 

 Sunetta, 474. 

 Susaria, *323. 

 Suture, 180, 206. 

 Sycotypus, 217. 

 Syncera, *256. 

 SjTidosmya, *483. 

 Synonyms, 48. 

 iiymola, 238. 



Tagelits, 488. 

 Tanalia, 247. 



Tancredia, *457. 

 Tanysiphon, *477. 

 Tanystoma, *290. 

 Taonitis, 170. 

 Tapes, *475. 

 Taste, 18. 



Tebennophorus, 296. 

 Tectaria, *252. 

 Tecti-branchiata, *312. 

 Tcctura, 281. 

 Tegula, 264. 

 Teinotis, *269. 

 Tedina, 458. 

 TeUina, *480. 

 Tellinidae, »479. 

 Tellinides, *480. 

 Tellinodora, 480. 

 Tellinomya, *497. 

 Temnocheilus, 189. 

 Temperature, 39. 

 Tentaculites, *190. 

 Tentaculites, 350. 

 Terebellum, *212. 

 Terebellum, 248. 

 Terebra, 55, *220. 

 Terebralia, ♦243. 

 Terebratella, *365. 

 Terebratula, 19, 38, 357, 



358, *363. 

 Terebratulidse, *363. 

 Terebratulina, *364. 

 Terebrirostra, 365. 

 Teredina, *507. 

 Teredo, 35, 341, *506. 

 Tergipes, *o35. 

 Tertiary shells, 130. 

 TestaceUa, 9, *298. 

 Tethys, ^333. 

 Tetrabranchiata, *178. 

 Tetraplodon, 434. 

 Teudopsis, *168. 

 Teuthidee, *167. 

 Teuthis, 167. 

 Texture of shells, 29. 

 Thalassides, 470. 

 Tkallicera, 259. 

 Theca, 190, 346, *349. 

 Thecacera, ♦330. 

 Theceurybia, 350. 

 Thecidium, 358, *369. 

 Thecosomata, *348. 

 Thetis, *491. 

 Thiara, 246. 

 Thoracoceras, *191. 

 Thoracoceras, «195. 

 Thracia, *495. 

 Thyatira, 456. 

 Thysanoteuthis, *172. 

 Tiara, 231, 

 Tichogonia, *423. 

 Tiedemannia, *35l. 

 TomeUa, *229. 

 Tomigerus, 289. 

 Tongue, 287. 

 Tonicia, 283. 

 Torcula, 248. 

 Torinia, *253. 

 Tomatella, *313. 

 Tornatellidae, *312. 



Tomatellina, *294. 

 Tomatina, *315. 

 Torquilla, 292. 

 Toxoceras, *200. 

 Trans- Atlantic prov., 85u 

 Trapezium, 467. 

 TrawUng, 139. 

 Tredopsis, *289. 

 Trematis, *3S9, 

 Tremoctopus, 159, *161. 

 Trevelyana, »331. 

 Triboniophorus, *297. 

 Trichites, 31, »420. 

 Trichocyclus, ♦354. 

 Trichotropis, 33, 55, *216. 

 Tricolea, 263. 

 Tridacna, 13, 35, 55, *452. 

 Tridacnidae, *451. 

 Tridonta, 464, 

 Trif oris, 37, *242, 

 Trigona, *474. 

 Trigonella, 375, 477, 484. 

 TrigoneUites, 182. 

 Trigonia, *430. 

 Trigoniadse, *430. 

 Tngonoceras, 194. 

 Trigonoccelia, 426. 

 Trigonosemus, *365. 

 Trigonotreta, 371. 

 Trigonulina, 472. 

 Triomphalia, 506. 

 Triopa, *330. 

 Tritoceras, *192. 

 Triton, 33, 36, 55, 56, *214 

 Tritonia, *332. 

 TritoniadEe, *332. 

 Trivia, *233. 

 Trochalia, *244. 

 Trochatella, 276. 

 TrochateUa, *310. 

 Trochiscus, 264. 

 Trochita, *276. 

 Trochoceras, *189. 

 Irocholites, 189. 

 Trochotoma, ♦271, 

 Trochus, 23. 38, ♦264. 

 TropcEUTn, 199. 

 Trophon, 55, ♦218. 

 Tropidophora, 307. 

 Truncatella, 36, »256. 

 Tuba, 256. 



Tubular structure, 32. 

 Tudora, 307. 

 Tugonia, 489. 

 Tunicata, 5. 

 Turbinella, *216. 

 Turbinellus, 31. 

 Turbinidffi,«263. 

 Turbo, 23, *263. 

 Turbonilla, 239. 

 Turcica, 265. 

 Turrilites, ♦200. 

 Turris, 228, 231. 

 Turritella, 36, *248. 

 TiUTitellidae, *248. 

 Turtonia, *459. 

 Tyleria, *496. 

 Tylodina, *324. 

 Tylostoraa, *314. 



