532 



MOLLUSCA BRACHIOPODA 



Spiriferidae, 501, 505, 508 



Spirt feri)ia, stratigrajihical distribution, 

 507, 508 



Spirobrancliiata, 464 



Spiroirojns, 42G ; radula, 218, 219 



Spirula, 247, 386, 387, 388 



Spirulirostra, 380, 386, 3S8 



Spondyliiim, 500 



Spondylus, 257, 446, 450, 450; ocelli, 

 191 ; g-eiiital orifice, 242 



Spiniiiixhniiii-haea, 437 



Spiiiiijiiicli itiiii , 403 



Sportella, 453 



Starfish eat oysters, 110 



Stearns, R. E. C, ou tenacity of life, 38 



Stegodera, 306 



Stenochisma, 505 ; stratigrapliical distri- 

 bution, 507, 508 



Stenogijm, 324, 443 ; S. decollata, 279 ; 

 food, 34 ; smell, 194 ; Goodallii, 279 ; 

 octona, sudden appearance, 47 



Steuogyridae, radula, 234 



Steiwinis, 440 ; habits, 45 



Stenothyra, 415 



Stenotis, 4I6 



Stenotrema, 340, 44-1 



Stephanoceras, 399 



Stepsdnoda, 358 



Stilifer, 76, 77, 79, 4^^^ 



Stiliferina, 76, 4'22 



Stiliger, 432 



Stilina, 76 



Stonstmna, 348-851, 4IO 



Stoloieuthis, 389 



Stomach, 239 



Stomatella, 4O8 



Stoma tia, 4O8 



Stomntixhm, 302, 417 



Slrebelia, 353, 44O 



Strength of Helix, 45 



Strephohasis, 417 



Strepsidura, 4^4 



Streptaulus, 414 



Streptaxis, 302, 306, 309, 314-331, 343, 

 357-359, 440 ; variation, 87 



Streptoneura, 203, 404 



Slreptosiphon, 4^4 



Streptostelc, 329, 338, 44O 



Streptostyla, 343-355, 353, 44O 



Stricklandia, 505 ; stratigraphical distri- 

 bution, 507, 508 



StrigateUa, 425 



Stringocephalidae, 506, 508 



String ocepludm, 492, 497, 498, 500, 501, 

 506 ; stratigraphical distribution, 507, 

 508 



Strnhila, 340, 345-353 



Strobilojjs, 44^ 



Strombidae, habits, 64 ; penis, 136 



Strombina, 423 



Strombus, 69 200, 252, 4I8; mimicking 

 Conus, 69 ; oiaerculum, 78, 269 ; pearls 



from, 101 ; metapodium, 199 ; stomach, 

 239 



Strophnlosia, 504 : stratigrajihical distri- 

 bution, 507, 508 



Stropheodoniu, 497, 505, 508 



Strophia, 343-355, 442 ; S. nana, 278 



StrophochUus, 358, 441 



StrojjhomeiKi, 499, 505; stratigrapliical 

 distribution, 507, 508 



Strophomenidae, 500, 505, 508 



Stro2)hostoma, 248, 414 



Structure of shell, 252 



Struthiolaria, 99, 4IS ; radula, 216 



Styliola, 437 



Stylodonta, 339, 44I 



Stylommatophora, 11, 181,45'' ; origin, 19 



Snbcmarg inula, 4O6 



Submytilacea, 451 



Subularia, 422 



Subulina, 332, 352, 443 



Subulites, 420 



Succinea, 325, 327, 358, 443 ; jaw, 211 ; 

 .S. putris, parasite of, 61 



Succineidae, 443 ; radula, 234 



Sudden appearance of Mollusca, 46 



Snessia, stratigraphical distribution, 507 



Sulphuric acid, 237 



Surcula, 426 



Sycotypus, 424 



Synaptocochlea, 4O8 



Syndiisimia, 453 



Syrln'jui'lnirls, 500, 508 



Syr aula, 433 



Syrnolo2)sis, 332, 333 



Systropihia, 356, 357 



T AC HE A, 441 



Taenioglossa, 223, 4II 

 Taheltia, 414 

 Talon a, 457 

 Tanalia, 304, 417 

 Tancredia, 453 

 Tanga7iyicia, 332, 415 

 Tanganyika, L., fauna of, 12 

 Tanysiphon, 454 

 Taonius, 391, 391 

 Tapes, 454 

 Taste, 179 



Tebennopihorus, 143, 340, 440 

 Tectarius, 413 

 Tectibranchiata, 10, 439 

 Tectura, 305, 405 

 Tectits, 4O8 



Teeth in aperture of the shell, 63 

 Teinostovut, 247, 408 

 Teinotis, 407 

 Tdescopium, 252, 4I6 

 Tellina, 446, 453, 453 ; T. balthica, varia- 

 tion, 84 

 Tellinacea, 453 

 Telotremata, 511 

 Tenacity of life, 37 



