INDEX. 



1589 



Sedimentary rocks, origin of, 11. 



Selenaria, 638. 



Selenariidcv, 638. 



Seliscothon , 164, 166. 



Semele, 748. 



Semicoscinium, 625. 



Sepia, 879, 880. 



Sepiophora, 874, 879. 



Septastr<za, 246, 272. 



Septifer, 711. 



Septopora, 628. 



Seraphs, 790. 



Seriatopora, •26-2, 268, 269. 



Serpula, 471, 472, 473. 



Serpulites, 475. 



Sertularida, 203. 



Sessile Cirripedes, 497, 499. 



Sestrostojnella, 180. 



Shumardia, 545. 



Sialidce, 598. 



Sigaretus, 779. 



Siliceous organic deposits, 32. 



Silicification, 7. 



SilicispongicB, 160. 



Siliqua, 740. 



Siliquaria, 783. 



Simoceras, 868. 



Siphonaria, 815. 



SiphonariidcB, 815. 



Siphonate Bivalves, 691, 692. 



Siphonia, 167, 168. 



Siphonodentaliujn, 820. 



Siphonostomatous Gastropods, 760, 761. 



Siphonotreta, 652. 



Skenidium, 660, 661. 



Slimonia, 555. 



Smilotrochus, 266. 



Smithia, 290. 



Smittia, 637. 



Sniynthurus, 592. 



Sola?iocrinus, 443. 



Solariidce, 774. 



Solaruim, 774. 



Solaster, 393, 397, 399. 



Solecurtus, 740. 



Sole my a, 748. 



SolemyidcB, 748. 



Solen, 740. 



Solenidce. 740. 



Soleniscus, 785. 



Solenopora, 200, 201. 



Solenopsis, 741. 



Sowerbya, 739. 



Spatangidce, 389. 



Spatangus, 390. 



Spathioca?-is, 852. 



Sphczractinia, 199. 



Sphcer echinus, 383. 



Sphcei-exochus, 537. 



Sphizrium, 738. 



Sphceronites, 454. 



Sph&rospongia, 173, 1564. 



Sphcerulites, 734. 



Sphenaulax, 174. 



Sphenot?'Ochus, 266. 



Sphinx, 599. 



Spirialis, 805. 

 S pi r if era, 664, 665 

 Spiriferidce, 664. 

 Spiriferina, 665. 

 Spirigera, 666. 

 Spirillina, 133. 

 Spirocyathus, 184. 

 Spiropora, 618. 

 Spirorbis, 472, 473. 

 Spirula, 873, 875. 

 SpirnlidcB, 875. 

 Spiruliroslra, 878. 

 Spondylidce, 698. 

 Spondylus, 698, 699. 

 Spougilla, 158. 

 Spongillidce, 155. 

 Spongillopsis, 163. 

 Spongites, 161. 

 Spongophyllum, 286. 

 Sporadopora, 225, 229. 

 Sporadopyle, 174. 

 Spumellaria, 145, 147. 

 Squilla, 562. 

 Stacheia, 129. 

 Staphy UnidcB, 601. 

 Stauractinella, 168, 174. 

 Stauria, 264, 273. 

 StauridcB, 273. 

 Staurocephalus , 537. 

 Stam'oderma, 174. 

 Stauivde?'mid&, 174, 176. 

 Stanronema, 176. 

 Stelidiocrinus, 427. 

 Stellaster, 398. 

 Stellispongia, 180. 

 Stenaster, 396. 

 Stenocrinus, 434. 

 Stenopora, 350. 

 Stenoschisma, 671. 

 Stephanastrum, 149. 

 Stephanoceras, 866. 

 Stephanoceratida , 865. 

 Stephanophyllia, 308. 

 Stereoplasma, 245. 

 Stictopora, 630. 

 Stictoforidce , 630. 

 Stoliczkaria, 227, 228, 229. 

 Stomatia, 770. 

 Stomatiidce , 770. 

 Stomatopoda, 561. 

 Stomatopora, 616, 617. 

 Stomatoporidce, 616. 

 Stomechijius , 383. 

 Stone-flies, 597. 

 Straparollus, 770, 771. 

 Strata, contemporaneity of, 46. 

 Streblopteria, 702. 

 Strephochetus, 127. 

 Strepsiplera, 600. 

 Streptelasma, 278, 279, 280. 

 Streptorhynchus , 663. 

 Striatopora, 315. 

 Stricklandia, 672. 

 Stricklandinia, 672. 

 Stringocephalidce , 676. 

 Stringocephalus , 676, 677. 



! i ( 

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