596 



INDEX. 



Stylifer, 440. 



Stylonychia, 100. 



Stylops aterritnus, 387. 



Sun-animalcule, 82. 



Sundew, 44. 



" Survival of the fittest, 1 ' 41. 



Sycandra raphanus, 568. 



Syeon, 110. 



— — ciliatum, 106. 



Syllis, 214, 215. 



vittata, 211. 



Synapta, 440, 467. 



— - digitata and inhrerens, 471. 



Syncytium, 105. 



Syrphus ribesii, 368. 



Tabttlata. 146, 148, 150. 



Taenia, 1>3-188. 



Tape-worms, 182. 



Tardigrada, 225, 334, 573. 



Taxonomy, 16, 22, 561. 



Teeth, 56. 



Tegumentary system, 55. 



Telotrocha, 164. 



Temperature in relation to living matter, 



11, 39. 

 Tentacula. 51. 

 Tentaculifera, 93. 

 Terebratula, 40. 



psittacea. 40. 



Terebratulid*, 404. 



Terebratulina septentrionalis, 400. 



Teredo, 406, 417. 



Testacellidae, 440. 



Tetrabranchiata, 455. 



Tetraphyllidea, 187. 



Tetrarhynchus, 183, 1S7. 



Tetrastemma. 163, 164. 



Teuthidae, 452, 463, 465. 



Thecosomata, 435-437. 



Thvsanopoda, 299. 



Thvsanura, 220, 362, 363. 



Ticks, 329. 



Tissues, 17. 



Tomopteris, 207. 



Torquatella, 98. 



Torula, 3S. 



Tracheae, 59. 



Tracheo-branchia?, 221. 



Trachynemata, 135. 



Tradescantia hair, 75. 



Trematoda, 53, 56, 157, 171-173, 182-1SS, 190, 



574, 575. 

 Tremoctopus, 462. 

 Triarthra, 170, 171. 

 Trichina. 550. 551. 

 Trichocysts, 97. 

 Trichodidae, 100. 

 Trichodina grandinella, 96. 

 Trichoscolices. 575, 580, 581. 

 Trigonia, 69. 416. 

 Trilobita, 220, 224, 225, 573. 



Trochus cinerarius, 420. 



Tubicola, 207. 



Tubifex, 193, 199. 



Tubipora, 146. 



Tubularidae, 118, 132. 



Tunicata, 53, 55, 59, 67, 510, 576, 581. 



Turbellaria, 45, 51, 56-61, 65, 157, 573-575. 



Tylos, 315. 



Types, morphological, 49. 



Typhlosole, 196, 518. 



Unio pictorum, 415. 

 Uropoietic system, 61. 



Yagisttxlcs, 429. 



Vampyrella, 75, 96. 



Vanessa atalanta, 367. 



Velella, 127. 



Ventriculites, 110. 



Veronicellidae, 440. 



Vertebrata and Invertebrata, 49. 



Vibracula, 393. 



Vibrionidae, 89. 



Vital force, 15. 16. 



Viviparous animals, 67. 



Volvocineae, 89. 



Volvox. 89, 579. 



Vorticellidae, 5, 33, 48, 62, 64, 94-101. 



W 



Waldheimia, 398. 



australis, 399. 



Waste of living matter, 10. 

 Water in living matter, 10. 

 Willsia, 120,121. 

 Wolffian duct, 61. 



Xtpiiosuea, 223, 232. 



Yeast, 12. 

 Yeast-plant, 45. 



Zo^a, 302, 303. 



Zoanthidae, 145, 146. 



Zoanthodeme, 138. 



Zoological chronology and geography, 70. 



Zooptiyta, 574. 



Zoophytic series, 5S0 



