INDEX 



387 



Syrhigopora, 98 

 Syringothyris, 179 



Tabula, 79, 80, 95 

 Tail fin, 329 

 Talitrus, 326 

 Tanaidacea, 318 

 Taxocrinus, 145 

 Taxodont, 203, 210, 229 

 Tealliocaris, 325 

 Tectibrauchia, 249 

 Teeth (Brachiopoda), 162 



,, (Larnellibranch), 203 

 Tegmen, 137, 140 

 Tellina, 224 

 Telotremata, 179 

 Telson, 291, 312, 318, 320 

 Temnechinus, 135 

 Temnocheilus, 265, 287 

 Tentacles, 51, 75, 76, 93, 135, 137, 



188, 232, 257, 260 

 Tentaculites, 255, 256 

 Terebratella, 183 

 Terebratula, 182 

 Terebratulina, 183 

 Teredo, 226 



Tergum, 290, 316, 346, 352 

 Terrnitidge, 335 

 Testicardines, 170 

 Tetrabranchia, 260 

 Tetracoralla, 86 

 Tetractinellida, 41, 46 

 Tetragraptus, 67 

 Textularia, 23 

 Thamnastrcea, 93 

 Thamniscus, 195 

 Theca, 256 



Theca (Corals), 77, 79 

 Thecidea, 174, 187 

 Thecosmilia, 93 

 Theonoa, 192 

 Thetironia, 224 

 Thetis, 224 

 Tholiasterella, 44, 48 

 Thorax (Trilobite), 292, 296 

 Thracia, 227 

 Ticks, 354 

 Titijus, 353 

 Tornoceras, 287 

 Toucasia, 221 

 Trabeculate columella, 79 

 Tracheae, 289, 332, 333 



Trachyceras, 272 



Transverse ornament, 237 



Trepostomata, 192 



Tretenterata, 170 



Triarthrus, 296, 298 



Tririd spicules, 42 



Trigeminal, 120 



Trigonia, 217 



Triiobita, 292 



Trlmerocephalus, 307 



Trinucleus, 303 



Tritaxia, 17 



Tritonium, 245 



Tritonofusus, 255 



Trochiform gasteropods, 236 



Trochoceras, 286 



Trochocyathus, 102, 104 



Trochodiscus, 29 



Trochus, 240 



Troostocrinus, 154, 155 



Trophon, 255 



Tube-feet, 108, 110, 112, 113, 115, 



119, 135, 137, 157 

 Tubercles, 121 

 Tubipora, 94, 97, 98, 103 

 Tubular ia, 53 



Turbinate gasteropods, 236 

 Turbinolia, 92 

 Turbo, 240 



Turreted gasteropods, 236 

 Turrilepas, 317 

 Turrilites, 274 

 Turritella, 243 

 Ti/^is, 246 



Ubaghsia, 99 

 Uintacrinus, 146 

 Umbilicus, 234 

 Umbo, 162, 202 

 Uncinulus, 182 

 Uncites, 180 



Unguiculate operculum, 236 

 Unicardium, 223 

 Unigeminal, 120 

 Unilocular, 17 

 ZJm'o, 218 



Uniramous, 318, 328 

 Uniserial crinoids, 139 



,, graptolites, 58 

 Univalve, 233 

 Urasterella, 112 

 Uronectes, 323 



