596 



INDEX. 



Stylifer, 440. 

 Sty [onychia, 100. 

 Stylops aterrimus, 387. 

 Sun-animalcule, 82. 

 Sundew, 44. 



'• Survival of the fittest,'" 41. 

 Sycandra raphanus, 568. 

 Sycon, 110. 



ciiiatum. 106. 



Syllis, 214, 215. 



vittata, 211. 



Synapta, 440, 4(57. 



digitata and inhaerens, 471. 



Syncytium. 105. 

 Syrphus ribesii, 308. 



Tapflata, 146, 148, 150. 



Taenia, 1^3-1 88. 



Tape-worms. 1S2. 



Tardlgrada, 225, 334, 573. 



Taxonomy, 10, 22, 501. 



Teeth, 50. 



Tegumentary system, 55. 



Telotrocha. 104.' 



Temperature in relation to living matter, 



11, ay. 



Tentacula. 51. 

 Tentaculifera, 93. 

 Terebratula. 40. 



psittacea, 40. 



Terebratulidaj, 404. 



TerebratuUna septentrionalis, 400. 



Teredo, 4oO, 417. 



Testacellidse, 440. 



Tetrabr.inchiata, 455. 



Tetraphyliidea, 187. 



Tetrarhynchus, ISo, 1S7. 



Tetrastemma, 163, 161. 



Teuthidge. 452, 463, 465. 



Therosomata 435-437. 



Thvsanopoda, 291). 



ThVsanura, 220, 362, 363. 



Ticks, 329. 



Tissues, 17. 



Tomopteris, 207. 



Torquatella. 98. 



Torula. 8S. 



Tracheae, .59. 



Tracheo-branchiae, 221. 



Trachynemata, 135. 



Tradescantia hair, 75. 



Trem.atoda, 53, 50, 157, 171-173, 1S2-1SS, 190, 



574, 575. 

 Tremoctopns, 462. 

 Triarthra, 170.171. 

 Trichina. .550. .551. 

 Trichocvsts. 97. 

 Trichodidae. 100. 

 Trichodina graiidinella, 9o. 

 Trichoscolices. 57.5, .580, 581. 

 Triironia. 69. 416. 

 Trilobita, 220, 224, 225, 573. 



Trochus cinerarius, 420. 



Tubicola, 207. 



Tubilex, 193, 199. 



Tubipora, 140. 



Tubularidai, 118, 132. 



Tunicata, 5S, 55, 59, 67, 510, 576, 581, 



Turbellaria, 45, 51, 50-61, 65, 157, 573-575, 



Tylos. 315. 



Tvpes, morphological, 49. 



Typhlosole, 190, 518. 



U 



Unio pictorum, 415. 

 Uropoietic system, 61. 



VAGlNtTLCS, 429. 



VampyrcUa. 75, 96. 



Vanessa atalanta, 367. 



Velella, 127. 



Ventriculites, 110. 



Veronicellidie, 440. 



Vertebrata and Invertebrata, 49. 



Vibracula, 393. 



Vibrionida*, 89. 



Vital force, 15. 16. 



Viviparous animals, 67. 



Volvocineae, 89. 



Volvox, 89, 579. 



Vorticellidae, 5, 33, 48, 62, 64, 91-101. 



Waldiieimia, 398. 



australis, 399. 



Waste of living matter, 10. 

 Water in living matter, 10. 

 Willsia, 120,121. 

 Wolffian duct, 61. 



Xtpuosura, 228, 232. 



Yea8t. 12. 

 Yeast-plant, 45. 



Zo^a. 302, 303. 



Zoanthid*. 14.5, 146. 



Zoanthodeme. 138. 



Zooiosrical chronology and geography, 10k 



Zoophyta, 574. 



Zoophytic series, 5S0 



