618 



IXDEX. 



Thecirlium, 578, 581, 



585. 



Thecocladium, 133. 

 Thecopsammia, 196. 

 Thecosphaera, 23. 

 Tlielactis, 187. 

 Thelepus, 485. 

 Thelohania, 68. 

 Thenea, 94. 

 Theodisca, 482. 

 Theodoxia, 395. 

 Tlieonella, 94. 

 Tin-sea, 183. 

 Third vas clefereus, 226. 

 Thoosa, 97. 

 Thorecta, 98. 

 Thorectandra, 98. 

 Thouarella. 182. 

 Thraeia, 349. 

 Thread-cell 101. 

 Thread-worms, 274. 

 Thrinacophora. 96. 

 Thrombus, 95. 

 Tliuiaria, 133. 

 Thurauiniiim. 13. 

 Thyca, 357, 371, 398. 

 Thyroscyphus, 132. 

 Tliysnnostoma, 168. 

 Thysano/oon, '217, 223. 

 Tlivsanns, 194. 

 Tiara, 131. 

 Tiarina, 46. 

 Thropsi.s, 109, 134. 

 Tichoseris, 196. 

 Tii-dmannia, 406. 

 Tima, 134. 

 Tinoporus, 14. 

 Tintinnidinni, 49. 

 Tintinnopsis, 49. 

 Tintiimus, 49. 

 Titanideum, 182. 

 Titiscania, 395. 

 Tokophrya, 52, 53. 

 Tomopteris, 465, 472. 



479. 



Top shell, 395. 

 Toreunia, 167. 

 Tornatina, 406. 

 Tornote, 82. 

 Toxa, 84. 

 Toxochalina, 96. 

 Toxoclytus, 168. 

 Toxoglossa, 397. 

 Toxorchis, 134. 

 Traehelius, 46. 

 Traclieloiimnas, 31. 

 Tracheophysae, 141. 

 Traohomedusae, 135. 

 Trachycanliis, 92. 

 Traehyneina, 135. 

 Trachypliyllia, 195. 



Trachypora, 196. 

 Trachytedania, 96. 

 Travisia, 487. 

 Travisiopsis, 482. 

 Trematoda. 223. 

 Tn-matotrochus, 194. 

 Tremanlidiiim, 95. 

 Tremoctopus, 420, 421, 



441, 446. 



Trepomonas, 28, 31. 

 Tretolophus, 95. 

 Triact, 91. 

 Triaene, 83. 

 Triaeiiopliorus, 258. 

 Triarthra. 302, 309. 

 Triaulic, 379. 

 Triaxon, 84. 

 Triaxonia, 90. 

 Tribrachiurn, 94. 

 Trichamphora, 17. 

 Trichia, 17. 

 Trichina. 236, 278. 

 Trichinosis, 288. 

 Trichobranchidae, 486. 

 Tricliooephalus. 235, 279. 

 Trichochaeta, 511. 

 Triehocyst, 39. 

 Tricliodal, 86. 

 Trichodenua, 292. 

 Trieliodina, 50. 

 Trichodinopsis, 50. 

 Trichodrilus, 508. 

 Trichogaster, 49. 

 Tricliomastix, 31. 

 Trichomonas, 31. 

 Trichophrva, 54. 

 Trichoplax, 243. 

 Trichoptilum, 181. 

 Trichosomura, 236. 

 Trichosteiunia, 97. 

 Tricliostoinata, 46. 

 Trichotropis, 398. 

 Trielada, 221. 

 Tridacna. 331, 348. 

 Tridacophyllia, 195. 

 Triforis, 399. 

 Trigaster, 511. 

 Trigger, 101. 

 Trigonia, 345. 

 Trigoniidae, 328, 341. 

 Trigonoporus, 222. 

 Trilobus, 30, 291. 

 Trimorphisni, 9. 

 Trineina, 13. 

 Trinephrus, 500, 510. 

 Triod, 84. 

 Trio]a, 412. 

 Triptoleniiis, 94. 

 Tripylaria, 21, 23. 

 Tristomum, 234. 

 Tritaxia, 13. 



Triticella, 567. 



Triton, 400. 



Tritonia, 411. 



Tritonioidea, 411. 



Trochal disc, 299. 



Trochammina, 13. 



Trochetia, 51<>, 510, 526. 



Trochilia, 46. 



Trochocyathus, 194. 



Trochopus, 234. 



Trochoseris, 196. 



Trochosphaera, 308. 



Trochosphere of (Gastro- 

 poda, 381 ; ofRotifera, 

 307. 



Trochotonia, 394. 



Trochus, 367, 376, 395. 



Trophi, 303. 



Trophon, 396. 



Trophonia, 489. 



Trophosonie, 126. 



Tropidocera, 289. 



Truncate! la, 398. 



Truncatulina, 14. 



Tryniohelia, 195. 



Trypano'soma, 30. 



Trypanosyllis, 476. 



Tube Rotifera, 303. 



Tubella, 96. 



Tubercula pubertatis, 

 506. 



Tubiclava, 129. 



Tubieolaria, 301. 



Tubifex, 505. 508. 



Tubipora, 178. 



Tubucellaria, 565. 



Tubularia, 130. 



Tubulina, 17. 



Tubulipora, 566. 



Tun, 400. 



Turbanella, 311. 



Turbellaria, 210. 



Tnrbinaria, 197. 



Turbinellidae, 397. 



Turbinolia, 194. 



Turbo, 376, 395. 



Turkey sponge, 87, 98. 



Turricula, 397. 



Tim-is, 131. 



Turritella, 399. 



Turritigera, 565. 



Turritopsis. 131. 



Tykonus, 511. 



Tylencbu.s, 282, 290. 



Tylodina, 409. 



Tylopathes, 190. 



Tylosoma, 537, 539. 



Tylote, 8:;. 



Tympanidium, 23. 



Typhaeus, 502', 506, 510. 



Typhloscolex, 472, 482. 



