IXDEX. 



517 



Spirialis, 347, *3ol. 

 Spirifera, *371. 

 Spiriferiase, ♦371. 

 Spiriferina, *372. 

 Spiri/jei-a, 373. 

 Spiroplyplius, 219. 

 Spirula, 9, *178. 

 Spirulidai, *178. 

 Spirulirostra, *177. 

 SpistJla, 477. 

 Sponilylobolus, S87. 

 Spondylolites, 1S3. 

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



*413. 

 Spongaria, 180. 

 Spongiobrauchcea, *354. 

 Sporadic species, 51. 

 SporteUa, 457. 

 Stalagmium, 427. 

 Steganostoma, 308. 

 Stenoceras, 197. 

 StenogjTa-, *293. 

 Stenopus, *2S9. 

 Stiliier, 9, *241. 

 Stoastoma, *310. 

 StomateUa, *267. 

 Stomatia, *268. 

 Stomatia, 236. 

 Straparollus, 267; 

 Strepho7ia, 227. 

 iStrepsidnra, 21S. 

 Streptaxi?, *2S9. 

 StrejAorhynchus, 3S0. 

 Striati, *189. 

 Sh-igilla, 480. 

 Strobilus, 294. 

 Strombidffi, «210. 

 Strombiis, 31, *210. 

 St.'-ophalosi;i, *385. 

 Stropheodonta, 381. 

 Strophomena, *380. 

 Strophostoma, 308. 

 Sti-ucture of shell, Braclii- 



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. 

 Suhula, 220. 

 Suhidina, 292. 

 Succinea, *290. 

 Sucssia, *372. 

 Salco-buccinum, 219. 

 Sunetta, 474. 

 Susaria, *323. 

 Suture, 180, 206. 

 Sycotypus, 217. 

 Syncera, *256. 

 Syndosmya, *483. 

 Synonyms, 48. 

 i<yr7iola,228. 



Taqelus, 488. 

 Tmalia, 247. 



Tancredia, *457. 

 Tanysiphon, *477. 

 Tauystoma, *290. 

 laoniiis, 170. 

 Tapes, *475. 

 Taste, IS. 



Tebennophorus, 296. 

 Tectaria, *2o2. 

 Tecti-branchiata, *312. 

 Tectum, 281. 

 Tegida, 264. 

 Teinotis, *2d9. 

 Tedina, 45S. 

 Tellina, *4S0. 

 Tellinid^, *-J79. 

 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. 

 Terebi-atula, 19, 38, £ 



358, *363. 

 TerebratulidjB, *363. 

 Terebratulina, *364. 

 Terebrirostra, 365. 

 Teredina, *507. 

 Teredo, 35, 341, *506, 

 Tergipes,*335. 

 Tertiary shells, 130. 

 Testacella, 9, *298. 

 Tethj-s, ♦333. 

 Tetrabranchiata, *17S. 

 Tetraplodon, 434. 

 Teudopsis, *168. 

 Teuthidce, -167. 

 Teuthis, 167. 

 Texture of shells, 29. 

 Tlmlnasides, 470. 

 Tliallicera, 259. 

 Theca, 190, 346, *349. 

 Thecacera, «330. 

 Theceurybia, .350. 

 Thecidium, 358,*3C9. 

 Tliecosomata, *348. 

 Thetis, *491. 

 Thiara, 246. 

 Tlixnracoceras, *191. 

 Thoracoceras, *195. 

 Tlu-acia, *495. 

 Thyntira, 456. 

 Thysanoteuthis,*172. 

 Tiara, 231. 

 Tichogonia, *423. 

 Tiedemannia,*35I. 

 TomeUa, *229. 

 Tomigerus, 289. 

 Tongue, 287. 

 Tonicia, 283. 

 Torcida, 248. 

 Torinia, *253. 

 Tornatella, *313. 

 Toruatellidffi, *312. 



Tomatellina, *294. 

 Tomatina, *315. 

 Torquilla, 292. 

 Toxoceras, *200. 

 Trans-Atlantic prov., 85. 

 Trapezium, 467. 

 Trawling, 139. 

 Tredopsis, *2S9. 

 Trematis, *3s9. 

 Tremoctopus, 159, ^164. 

 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. 

 Trigonellites, 182. 

 Trigonia, *430. 

 Trigoniadae, *430. 

 Trigonoceras, 194. 

 Trigonoccelia, 426. 

 Trigonosemus, *365. 

 Trigonotreta,'dl\. 

 Trigomdina, 472. 

 Triomphalia,'506. 

 Triopa, *330. 

 Tritoceras, *192. 

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

 Tritonia, *332. 

 Tritoniadce, *332. 

 Trivia, *233. 

 Trochalia, *244. 

 Trochatella, 276. 

 TrochateUa, *310. 

 Trochiscus, 264. 

 Trochita, *276. 

 Trochoceras, *169. 

 Trocholites, 189. 

 Trochotoma, ♦271. 

 Trochus, 23, 38, *264. 

 T)-opceum, 199. 

 Trophon, 55, ♦218. 

 Tropidophora, 307. 

 Truncatella, 36, »256. 

 Tuba, 256. 



Tubular structure, 32. 

 Tudora, 307. 

 Tugonia, 489. 

 Tunicata, 5. 

 Turbinella, *216. 

 Turbinellus, 31. 

 Turbinidee, ♦263. 

 Turbo, 23, *263. 

 Turbonilla, 239. 

 Turcica, 265. 

 Turrilites, «200. 

 Turris, 228, 231. 

 Turritella, -36, *248. 

 Turriteliidai, *248. 

 Turtonia, *459. 

 Tyleria, *496. 

 Tylodina, *;j24. 

 Tylostoma, ♦314. 



