INDEX. 



4ir 



Triton, Montf. . . II 

 Tritonella, A. Ad. . II 

 Tritouia, Cuvier. . II 

 Tritonia, Lamarck. II 

 Tritoniadae. ... II 

 Tritonidea, Swainson. II 

 Tritonidse. ... II 

 Tritoniuin, Fabr. . II 

 Tritouium, Link. . II 

 Tritonofusus, Beck. II 

 Tritonopsis, Conrad. II 

 Triumphalia, Sowb. Ill 

 Triumphis, Gray. . II 

 Trivea, Swainson. . II 

 Trivia, Gray. ... II 

 Trochactseon, Meek. II 

 Trochactseonina, Meek.II 

 Trochalia, Sliarpe. . II 

 Trochatella, Swainson. II 



Trochella, Gray 

 Trochella, M'Coy. 

 Trocliia, Swainson. 

 Trochidse. . . 

 Trochilina, Gray. 

 Trochiscus, Held. 



II 

 II 

 II 

 II 

 II 

 III 

 III 

 II 

 II 

 II 

 II 

 II 

 II 



Trochiscus, Sowerby 

 Trochita, Schum. . 

 TrochoceraSjBarr. . 

 Trochochlea, Klein. 

 Trochocirrus, Ryck. 

 Trocliodon, Seelej'^. 

 Trocholites, Emmons. II 

 Trochomorpha, Alb. Ill 

 " III 

 Troclionanina, Mouss.III 

 Trochoneraa, Salter. 11 

 Trochonemopsis, Meek.II 

 Trochotoma, Lycett. II 

 Trochotremaria, Ryck. II 

 Trochovitrina, Mart. Ill 

 Trochus, Linn. . . II 

 Trophidiscus, Stein. Ill 

 Trophon, Montf. . II 

 Tropidina, H. & A. Ad.II 

 Tropidocardium, Rr. Ill 



121 

 158 

 381 

 376 

 881 

 143 

 121 

 144 

 121 

 187 

 124 

 127 

 129 

 198 

 198 

 856 

 855 

 289 

 291 

 211 

 818 

 111 

 808 

 212 

 24 

 89 

 315 

 211 

 57 

 818 

 218 

 821 

 56 

 26 

 80 

 26 

 809 

 309 

 820 

 319 

 20 

 309 

 106 

 107 

 278 

 192 



Tropidoceras, Hyatt. II 

 Tropidocyclus, Kon. II 

 Tropidodiscus, Meek. II 

 Tropidoleptus, Hall. Ill 

 Tropidophora, Trosch. II 

 Tropiphora. ... II 

 Tropites, Mojs. . . II 

 Troschelia, Mch. . II 

 Truella, Pease. . . Ill 

 Truncaria, Ad. & Rve. II 

 Truncatella, Risso. II 

 Truncatellidse. . . II 

 Truncatellina, Lowe. Ill 

 Truncilla, Rafinesque.III 

 Tryblidium, Linds. II 

 Tryonia, Stimpson. 

 Trypanostoma, Lea. 

 Tuba, Lea. . . . 

 Tubicanthus, Swains 



Tubicolidae. . . . 

 Tubifer, Piette. . . 

 Tubina, Barrande. . 

 Tubiola, A. Adams. 

 Tubulites, Davilla. . 

 Tubulostium, Stol. 

 Tuceta, Bolten. . . 

 Tudicla, Bolten. 

 Tudora, Gray. . . 

 Tugalia, Gray. . . 

 Tugonia, Gray. . . 

 Tugurium, Fischer. 

 Tuliparia, Swains. . 

 Tulotoma, Hald. 

 Turbina, Koninck. . 

 Turbinella, Lamarck. 

 Turbinellidse. . . 

 Turbinellina, Kon. . 

 Turbinidse. . . . 

 Turbinopsis, Conrad. 

 Turbo, Linn. . . . 

 Turboidea, Seeley. . 

 Turbonilla, Risso. . 

 Turbonillidse. . . 

 Turbonillopsis, Kon. 

 Turbonitella, Kon. . 



II 

 II 

 II 

 II 

 II 



III 

 II 

 II 

 II 

 II 

 II 



III 

 II 

 II 

 II 



III 

 II 

 II 

 II 

 II 

 II 

 II 

 II 

 II 

 II 

 II 

 II 

 II 

 II 

 II 

 II 



PAGE 



78 

 823 

 828 

 830 

 285 

 223 



67 

 129 



87 

 155 

 277 

 277 



72 

 239 

 335 

 269 

 256 

 245 

 307 

 808 

 117 

 248 

 823 

 299 

 119 

 226 

 258 

 140 

 284 

 829 

 187 

 216 

 187 

 274 

 801 

 160 

 160 

 806 

 304 

 181 

 304 

 807 

 284 

 234 

 306 

 807 



