1590 



INDEX. 



Strobilepis, 501. 

 Strobilocystites, 452. 

 St?-o?natactis, 21. 

 Stromatopo?-a, 235, 236, 237. 

 Stromatoporella, 236, 237. 

 Stromatoporoidea, 229, 1564. 

 StrombidcB, 789. 

 Strombodes, 287. 

 Strombtis, 789. 

 Sti'ongylocentrotus, 383. 

 Strophalosia, 657. 

 Strophomeiia, 659, 66o, 661, 662. 

 Strophomenidce ; 658. 

 Strophostylus, 765. 

 Stygina, 535. 

 Styiarcea, 311. 

 Stylaster, 225, 226. 

 Stylasteridce, 225. 

 Sty Una, 272. 

 Sty Ho la, 805. 



Styliola-limestone, 805, 806. 

 Stylodictya, 148, 149. 

 Stylommatophora, 811. 

 Stylonurus, 554, 555. 

 Stylophora, 244, 245, 268. 

 Subulites, 786, 787. 

 Subulitidce, 786. 

 Succession of organic types, 96. 

 Succinea, 813. 

 Suessia, 665. 



Sulcator, burrows of, 488. 

 Sulcuna, 508. 

 Sulphate of lime, 14. 

 Sycon, 179. 

 Sy cones, 179. 

 Syconidce, 179. 

 Symbatkocrinidcs, 432. 

 Symbathocrinus, 432. 

 Synapta, 406, 407. 

 Synaptychus, 851. 

 Synhelia, 267, 268. 

 Synocladia, 628. 

 Syrzngammina, 127. 

 Syringolites, 318, 319. 

 Syringophyllum, 322. 

 Syringopora, 319, 321, 322. 

 Syringoporidce, 319, 320, 321. 

 Syi'ingosphara, 227, 229. 

 Syringosphcej'idce, 229. 

 Syi'ingothyris , 665. 



Tabulate Corals, 264. 



Tceniaster, 405. 



Talitrus, 556. 



Tanci'edia, 739. 



Tancredidce, 739. 



Tfl^J, 737- 



Taxoa'inidce, 431. 



Taxocrinus, 431, 445. 



Tectibranchiate Gastropods, 800. 



Teichonidce, 179. 



Tellina, 747. 



Tellinacea, 747. 



TellinidcB, 747. 



Tellinomya, 716, 717. 



Temnechinus , 382. 



Temnocheilus , 846. 



Tenebrionidce, 601. 



Tentaculites, 808, 809, 810. 



Tentaculitidce, 808. 



Terebellum, 790. 



Terebra, 799. 



Terebratella, 675. 



Terebratula, 673, 674. 



Terebratulidce, 673. 



Terebratulina, 674. 



Tereh'idce, 799. 



Terebrirostra, 675. 



Teredina, 745. 



Teredinidce, 745. 



Teredo, 745, 746. 



Termites, 597. 



Terque?nia, 699. 



Tessellate Crinoids, 423, 424. 



Testacella, 811. 



Testacellidce, 811. 



Tethya, 163. 



Tethyopsis, 164. 



Tetrabranchiate Cephalopods, 826. 



Tetracidaris, 378, 379. 



Tetracladina, 165. 



Tetraco7-alla, 276. 



Tetractinellidce, 163. 



Tetradiidce, 340. 



Tetradiam, 340, 341. 



Tetragonis, 172. 



Tetragraptus, 217. 



Tetraprionidian Graptolites, 220. 



Textularia, 130. 



Textularidce, 122, 130. 



Thalaminia, 199. 



Thalassicolla, 144. 



Thalassolampe, 144. 



Thamnog7'aptus, 205. 



Thaumatoo-intts , 438, 443. 



Theca, 807. 



Thecaphora, 197, 203. 



Thecia, ^2.2., 323. 



Thecidce, 322, 323. 



Thecidea, 678. 



Thecidiidce, 677. 



Thecidium, 677, 678. 



Thecocyathus, 266. 



Thecopsammia, 308. 



Thecosmilia, 270, 272. 



Thecosomatous Pteropods, 803, 804. 



Thecostegites , 322. 



Thelyphonus, 580. 



Theonoida, 620. 



7%<?&y, 738. 



Thinning out of beds, 72. 



Thiollie7'icrinus, 442, 443. 



Tholiasterella, 178. 



Tho7-acica (Ct7-7'ipedia), 497. 



Tho7-acost7-aca, 559. 



TJi7'acia, 749. 



Thyo?iidiu77i, 406, 407. 



Thysanwa, 592. 



Tia7-ac7-inus, 452. 



Tmop07'us, 133. 



Titanophas77ia, 594. 



7¥$wr, 579. 



