INDEX OF SUBJECTS 



Acantharia, 70, 1 10. 



Acanthocystis, skeleton, 75, 82 ; budding, 

 95; axial filaments, 101 ; classification, 

 log ; centrosomes, 266. 



Acanthonida, no. 



Acanthospora, 168. 



Acanthosporidee, 168. 



Acephalina, 168. 



Acineta, budding, 199; classification, 210. 



Acineta-theory, Stein, 13. 



Acinetidas, 210. 



Actinelida, no. 



Actinobolus, food-taking, 50 ; fig. p. 5 1 ; 

 tentacles, 183 ; classification, 206. 



Actinocephalidae, 167. 



Aclinocephalus, 168. 



Actinolophus, skeleton, 74 ; pseudopodia, 82 ; 

 classification, 109 ; phylogeny, 204. 



Aclinomonas, 103 ; fig. p. 103 ; classifica- 

 tion, 137. 



Actinopki<ys, 109; fig. p. 16; pseudopodia, 

 82 ; contractile vacuole, 87; conjugation, 

 97, 218; axial filaments, 101. 



Actinosphcsrium, alveoli in protoplasm, 35 ; 

 skeleton, 36 ; encystment, 90 ; artificial 

 reproduction, 97 ; axial filaments, 101 ; 

 membrane, 105 ; classification, 109 ; con- 

 jugation, 218 ; mitosis, 264 ; maturation, 

 236 ; irritability, 295, 301. 



Actinotricha, 209. 



Actipylea, 70, no. 



Actissa, fig. p. 17. 



Adelea, conjugation, 158, 229 ; classifica- 

 tion, 168 ; maturation, 237. 



Adinida, 5, 140. 



adoral zone, 6, 171. 



Aigyria, 207. 



Aggregata, 167. 



Aggregatidas, 167. 



Allomorphina, 108. 



alternation of generations, 12; in Reticu- 

 lariida, 74, 95. 



alveolar structure of protoplasm, 35. 



Alveolina, 107. 



Alveolinina?, 107. 



Ammodiscus, 107. 



Amceba coli, fig. p. 63. 



Amcebsea, 18. 



Amaba proteus, ectoplasm, fig. p. 36; 

 pseudopodia, 81 ; nucleus, 87; contractile 

 vacuole, 54, 88 ; fig. p. 89 ; conjugation, 

 97, 105 ; classification, 105 ; conjugation, 

 218 ; nucleus, 252, 276 ; secretion, 291, 

 292; irritability, 295, 297, 301. 



Amcebida, classification, 105. 



Amcebidse, classification, 105. 



Amcebosporidia, 169. 



Amphidinhim, 140. 



Amphidoma, 140. 



Amphileptus, 206 ; irritability, 295 ; food- 

 selection, 305. 



Amphilonchidae, no. 



Amphimonas, 137. 



Amphisia, 209. 



Amphisolenia, 140. 



Amphistegina, 109. 



Amphistomime, 106. 



Amphith&lus, 140. 



Amphitrema, 106. 



Amphizonella, 106. 



Amphoroides, 168. 



anal tube, in Infusoria, 186. 



Ancistrum, 207. 



Ancyromonas, 137. 



Ancyrophora, 168. 



androgonidia, in Volvox, 134. 



Androspyrida?, no. 



Anentera, 9. 



Angiosporea, 167. 



Animalcula, 7. 



animals and plants, 22. 



anisogamy, 224. 



Anisonema, 139. 



anisospore, 95. 



Anomalina, 109. 



Anoplophrya, 207. 



Anthocyrtidae, in. 



Anthophysa, 137; secretion, 292. 



335 



