INDEX 



533 



Tectarius, 413 



Tectibranchiata, 10, 429 



Tectura, 305, 405 



Tectus, 408 



Teeth in aperture of the shell, 63 



Teinostoma, 247, 408 



Teinotis, 407 



Telescopiuniy 252, 416 



Tellina, 446, 453, 453 \ T. balthica, 

 variation, 84 



Tellinacea, 453 



Telotreraata, 511 



Tenacity of life, 37 



Tenison- Woods, on red blood, 171; 

 on shell-eyes, 189 



Tennent, Sir J. E., on musical sounds 

 produced by Mollusca, 50 



Tennentia, 304, 314, 338, 440 



Terebellitm, 4I8 ; jumping powers, 64 



Terehra, 246, 263, 426, 426; radula, 

 219 



Terebratella, 468, 487; distribution, 

 486 ; fossil, 506 ; stratigraphical dis- 

 tribution, 508 



Terebratula, 467, 468, 487 ; size, 484 ; 

 distribution, 485, 486 ; fossil, 492, 

 499, 506; stratigraphical distribu- 

 tion, 506, 507, 508 



Terebratulidae, 487; fossil, 500, 505, 

 506 ; stratigraphical distribution, 507, 

 508 



Terebratulina, 466, 479, 487; larva, 

 482; distribution, 486; fossil, 506; 

 stratigraphical distribution, 508 ; 

 form of shell, 510 



Teredina, 457 



Teredo, 262, 457, 458 ; nervous system, 

 206 ; intestine, 241 



Tergipes, 432 



Terquemia, 450 



Testacella, 22, 52, 440 ; habits, etc., 49, 

 51 f . ; pulmonary orifice, 160 ; eyes, 

 186 ; radula, 231 ; anus, 241 



Testicardines, 466, 487; muscles, 476; 

 fossil, 497, 504 ; external characters, 

 497 ; internal characters, 499 ; attach- 

 ment of muscles, 501 ; stratigraphical 

 distribution, 508 



Testis, 135 



Tethyidae, 216 



Teth7js, 4S2 



Tetrabranchiata, 391 f. 



Thala, 4^5 



Thalassia, 319 



Thalotia, 4O8 



Thapsia, 329 



Thaumasia, 349, 442 



Thaumastus, 356, 442 



Thecacera, 434; radula, 229 



Thecidiidae, 487 ; fossil, 501, 506, 508 



Thecidium, 475, 479, 480, 483, 487; 

 fossil, 506, 508 



Thecosomata, 435 



Thelidomus, 346-351, 350. 44i 



Theora, 453 



Therasia, 441 



Thersites (Helicidae), 322, 325 



Ther sites (Fasciolariidae), 4^4 



Thetis, 454 



Thracia, 245, 459 



Thread-spinning, 29 



Thridachia, 432 



Thyca, 76, 79 



Thyrophorella, 330, 44O 



Thysanoteuthis, 390 



Tiedemannia, veliger, 132 



Tiphobia, 332, 333, 417 



Titicaca, L., Mollusca of, 25 



Todarodes, 390 



Tomichia, 414 



Tomigerus, 334, 356, 358, 442 



Tomocyclus, 354 



Tomostele, 330, 440 



Tonicella, 403 



Tonicia, 403 ; eyes, 188 



Torellia, 411 



Torinia, 413 ; radula, 224; operculum, 

 269 



Tornatellina, 278, 319, 323-327, 338, 

 358, 443 



Tornatina, 250, 430 



Torquilla, 44^ 



Toucasia, 455 



Touch, sense of, 177 



Toxoglossa, 218, 426 



Trachia, 314 



Trachyceras, 397 



Trachydermon, 403 



Trachyteuthis, 389 



Tralia, 439 



Transovula, 419 



Trematis, 492, 493, 504 ', stratigraphi- 

 cal distribution, 507, 508 



Trematonotus, 407 



Tremoctopus, 384; radula, 236; hec- 

 tocotylus, 137 



Trevelyana, 434 



Trichia, 316 



Trichotropis, 275, 4II 



Tricula, 302 



Tridacna, 273, 455 



Triforis, '4I6 ; radula, 224 



Trigonellites, 397 



Trigonia, 15, 254, 269, 448; jumping 

 'powers, 65; distribution, 370 



Trigonochlamys, 296, 440 



Trigonostoma, 426 



Trimerella, 495, 504. 508, 511 



Trimerellidae, 493, 494, 496, 504 ', strat- 

 igraphical distribution, 507, 508 



Trinacria, 448 



Triodopsis, 340, 44I 



Triopa, 434 



Triopella, 4S4 



