INDEX 



61' 



Stichasteridce, 298 

 Stichopus, 285 



japonicus, rod and supporting 



plate, 337 



Stilifer Linckiai, sections, 245, 246 

 Stolasterias ( = Asterias volsellata), 396 

 Stomatiidce, 5 

 Stone canal, 416-423 

 Streptoneurous condition (Gastr.), 133, 



158 



Streptosomata, 290 

 Strombidce, 6 

 Strombus, 102 



Strongylocentrotws Iwidus, 398 

 Strotocrinus, 307 



regalis, apical border, 368 



Struthiolaridw, 6 

 Stylommutophora, 8 

 Subemarginula, 89 

 Submytilacea, 17 

 Succineidce, 8 

 Symbathocrinus, 304 



Synapta, 288 ; young, 516 ; auditory 

 vesicle, section, 467 



digitata, 288 ; larva and young, 

 511 



,, inhcerens, calcareous body, 337 



vittata, 470 

 Synapticulae, 567 



Synaptidce, 288 ; ciliated urn, 438 

 Synostosis (Crin.), 376 

 Syzygy (Crin.), 376 



T^NIOGLOSSA, 6 

 Talarocrinus, 308 

 Tapes, 18 



Tapetum lucidum, 175 

 Taxocrinus, 309 



tnultibranchiatus, 310 

 Tectibranchia ( Palliata), 10 ; section, 



110 



Tectura ( = Acmcva), 5 

 JTeeth (Ast.), 473 ; (Echin.), 400, 401 ; 



pharyngeal (Gastr.), 180 

 Tegmen calycis, 302, 369 

 Tegmentum, 39 

 Teleiocrinus, 307 

 Tellina, 18 

 Tellinacea, 18 

 Tellinidce, 18 

 Temnopleuridce, 290 

 Temnopleurus, 290 

 Terebra, 102 

 Terebridce, 6 

 Teredina, 65 

 Teredinidce, 21 

 Teredo, 21 



navalis, 20 ; development, 259, 



260 



Teryipes, 13 



Terminal plates (Ast.), 354 

 Testacella, S, pallial organs, 77 

 lialiotidea, 9, 44, 45 



TestacdUdcB, 8 



Tethymelibidce, 13 

 Tethys, 13 

 Tetrabranchia, 22 

 Tliaumatocrinus, 309 



renovdl/'x, 310 



Tliecosomata (Pteropoda), 11 

 Theelia, 287 

 Thracia, 21 

 Thyca, 183 

 ,, ectoconc/ia, 244-246 ; sections, 244, 



246 

 Thyone, 287 



chilensis, 417 

 Thysanoteuthis, 24 

 Tiarechinus, 289 



princeps, 289 ; 319 



Tiedemann's bodies, 416-424 

 Titiscania, 4 

 Tornaria larva, 507 



Agassizi, 589 



Grenacheri, 587 



Krohni, 586, 590 



Millleri, 587 



Tornatinidce, 46 

 Torus aiigularis (Oph.), 361 

 Tosia, 326 

 Toxiglossa, 6 



Toxopneustes, 290 ; masticatory apparatus, 

 402 



droebachiensis, apical system, 



320 ; system of plates, 341 

 Tremoctopus, 24 



,, wolaceus, 196 



Trichaster, 301 . 



,, elegans, 394 

 Tricuspid body (Lam.), 194 

 Tridacna, 18 

 Tridacnidce, 18 

 Triforis, 160 

 Trigonia, 15 

 Trigoniidce, 15 

 Triopa, 13 

 Triploblastica, 545 

 Tripneustes, 290 

 Tritonia, 13 

 Tritoniadce, 13 

 Tritoniidce, 6 

 Trivium, 325. 347, 407 

 Trochidcc, 5 

 Troc/wphora, 253, 260 

 Trochostoma, 287 

 Trochus, gills, 90 

 Troostoblastidce, 315 

 Troostocrinus, 315 

 Truncatellidai, 6 

 Tubercle, 388 

 Turbinellidce, 6 

 Turbinidce, 5 

 Turbo, 166 

 Turgescence, 118 

 Turrilite stage, 68 

 Turritella, 30 



