INDEX 



83V 



Tealidt:, lijii- 



Tectibranchia, 7S4 \ 7,"i(> 



Teloblast, 4(j4'' 



Teloleeithal, 21!)-' 



Telotrochal, 4S(j' 



Telson, 541 



Temiiocephnhi, 2.59, im, 269 277 278 



Temnocephalea, 25;f^ , 259, 260, 2G9, 27.S 

 278, 279. 284, 2,s7 ' ' ' - 



Tendon, 37* 



Tentacle sheath, 210* : Roots 155- 



Tentacles, 32", 91 



Tentacular canal, 213 



Tentaculifera, 91* : Body and tentacles, 

 99, 100 : Nucleus, contractile vacuoles, 

 shell, colonies, reproduction, 100, 101 



Tentaeulocyst, 155*, 172 



Tentorium, 626* 



Tnehella, 474 



Ttrebellidce, 472, 474 



Ttrehra, 738 



Terehi-u/ii/a, 366, 368 



Terehra/u/ifhe, .367* 



Terehmfn/inii, 372 



Terei/o, 696, 701 



Terya, 578* 



Tergum, 541* 



Termilcs, 633 



Te><.iKra, 177, 178 



Testis— See Spermary 



"elhi/.^, 734 



Tetrabranchiata, 790*, 792, 795,797,798, 

 803, 804 



Tttmiiil/n, 71 



Tetrarhj/fichii.-,, 261, 2U2 



Ttlraistemma, 291 



ThaJussoplancta, 61 



ThaUatiiiiii, 499 



Theca, 205* 



Thomson, .J. ^'aughan, 3 



Thorax, of Apiis, 531 : .4x/«(W(.s .541 



PeriplaiuJn, (i22 : Solpugida, 664 

 Thread-worms, 297 — See Nemathel- 



minthes 

 Thysanopotjii, 56S 

 Thi/sdiior.oon, 255 

 Tliys*iura, 640 

 Thnrirola, 95 



Ticks, 653, 661— See Acarida 

 Tiedemann's vesicle, 383*, 426 

 Tintinnidiiim, 94 

 Tissues, 23* 

 Tmaojiliri.-, 488 



Tootli-^liells, 680 — See Scaphopoda 

 TrachefB, 35*, 609, 743 

 Tracheal gills, 642, 643 

 Tniffii'lUi^tat, 516 

 Trinhil'ni.'i, 94 

 TTKchcloiiioiiii's, 71 



TrachylinsB) 142* : (4enei'al structure, 

 153 : Sense organs, 154 : Tentacles, 



155 ; Reproductive organs, 154, 1.55 : 

 Development, 155, 156 



Tracbymedusae, 142", 154, 155, 156 



Translation, 285* 



Tritp-iloor Spider, 672 



TmjK-.iri^ 209 



Trematoda, 252*, 257, 258, 259, 260, 264, 

 265, 266, 267, 268, 269, 270, 272, 273, 

 277. 278, 279, 284, 285, 286, 287, 288 : 

 Example, 240 



Treploj-jlax, 233 



Tn'rtjihrtis hechii, 606 



Trii-liina, 310, 311 



Trichinella, 306, 311 



Trichiniasis, 312 



Trichocyst, 89, 93 



TrkhopUix, 233 



Tricbostomata, 91 



Tricladida, 252*, 253, 255, 257, 263, 264, 

 267, 268, 269, 271, 27.5, 276, 283, 284 



Tridacnn ijiijus, 710 



Trigger-hair— See Cnidoeil 



Triyonia, 695, 701, 710, 711 



Trilobita, 604, 605, 606, (i77 



Trimorphism, 129* 



Trhiiyitrki, 290 



Trislirolhii'Ut. 319 



Triton nodifekus, 721 . Shell, 721, 722, 

 723 : External features of soft parts, 

 723 : Foot, 724 ; Visceral spiral, 725 : 

 ilantle, 725 ; Ctenidium, 725 ; Os- 

 pliradium, 726 : Digestive system, 726, 

 727, 728 : \'ascular system, 72!) : Ex- 

 cretory system, 729 : Nervous system, 

 729, 730, 731: Sensory organs, 731 : 

 Reproductive organs, 7.32 ; Systematic 

 position, 734 



Tritonidie, 733, 734*, 745 



Tiivium, 377*, 416 



Trochal disc, 324 



Trocbelmintbes, 322* : Appendix, 336 



Trorheta, 516 



Trochopliore — See Trochosphere 



Trocho.-ijihara, 328. 332, 335 



Trochospbserida, 328* 



Trochosphere. 322, 440 



Trorhns, 733, 747 



Ti-onibiitiiiiii I'liliyiiiotiim, 665 



Trophozoite, 80 



Triipaiiommes, 71, 73 



Tiihe-feet, 377*, 376, 395, 401 



Tiihifcx, 473, 483 



Tiihilirhht', 488 



Tiihiponi, 195, 198, 199, 203, 208, 210 



Tiihiil,,,!,!, 145, 1.53 



Tnlnilarijc, 143 



Turbellaria, 252*, 255, 256, 257, 262, 

 263, 264, 265, 266, 267, 2(i8, 269, 271, 

 272, 273, 274, 275, 276, 284, 286 : Ex- 

 ample, 23() 



Tiirhn., 733, 747 



Typhlosole, 458' , 475, 685 



