86 



INDEX. 



Acanthometrtc, 47, 48. 



Acervulina, if. 



Acineta forms, 70, 71, 77. 



Aclinophrys, 6, 7, 8, 26. 



Actinospongia, 42. 



Agathistega, 10, 11. 



Amoeba, 3-6, 8. 



Atnoebea, 8. 



Amcebina, 8. 



Anal aperture, of Infusoria^ 56, 6j ; of 



Noctiluca, 75. 

 Animal nature, of Sponpes, 30. 

 Aquiferous system, of Sponges, 32. 

 Arcella, 8. 

 Arcellina, 8. 

 Aspidisca, 71. 

 Astomata, 2. 



Bristle, of Vorlicella, 56. 

 Bursaria, 63, 64, 66. 



Canals, of Polythalamia, 17 ; of 

 Sponges, 33. 



Carapace, of Hhizopoda, 8 ; of Infuso- 

 ria, 61, 62. 



Carchesiuni, 60. 



Carpenter ia, 43. 



Cassidulina, 15. 



Chilodon, 63, 65, 68, 73. 



Cilia, of Sponges, 30, 345 of Infusoria, 

 56, 66-68. 



Circulatory movements, in Sponges, 

 33, 34 ; in Infusoria, 64. 



Classification, of Protozoa, 2 ; of 

 Rhixopoda, 8 ; of Foraminifera, 9 ; 

 of SpongidcE, 36 ; of Tkalassicollidce, 

 Polycystina, and Acanthoiyictra;, 48 ; 

 of Gregarinid(Z, 51 ; of Infusoria, 59. 



Cliona, 42. 



Cceloptychium, 42. 



CoUosphcera, 46. 



Collosp/icsridiE, 48. 



Contractile vesicle, of Protozoa, i ; 

 of Amoeba, 5 ; of Infusoria, 57, 63. 



Cortical layer, of Infusoria, 57, 62. 



Cristellaria, 15. 



Cuticle, of Infusoria, 57, 62. 



Cycloclypeus, 26. 



Dentalina, 14. 



Dermal membrane, of Sponges, 34. 



Development, of Rkizopoda, 26 ; of 



SpongidtE, 39 ; of Gregarinidw, 50 ; of 



Infusoria, 08 ; of Noctiluca, 75. 

 Diaphane, 6a. 

 Didimophydie, 51. 

 Difflugia', 8, 26. 

 Digestive apparatus, of Infusoria, 62 ; 



of Noctiluca, 75. 

 Disk, of Vorticella, 56. 

 Distribution, of Foraminifera, 23 — 26; 



of Polycystina, 29; of Infusoria, 73. 

 Dujardinia, 43. 



Enallostega. 10, 11. 



Enchelys, 66. 



Encystation, of Infusoria, 68, 69. 



Ento?nostega. 10, 11. 



Entosolcnia, 14. 



Fpistylis, 60. 



Euplotes, 65, 67, 68. 



Faujasina, 17. 



Fibre, of Sponges, 32. 



Fission, of Rhixopoda, 26 ; of Infusoria, 



68. 

 Flagelliform filaments, of Infusoria, S-^. 

 Foraminifera, 8, 9 ; classification of, 9 ; 



unilocular forms of, 13 ; multilocular 



forms of, 14; structure of the shell 



in, 15—21; distribution of, 23—26; 



fossil forms of, 24, 25 ; size of, 26 ; 



affinity of. to Sponges, 43. 

 Fossil remains, of Foraminifera, 24, 25 ; 



of Polycystina, 29 ; of Spongidce, 42 ; 



of Infusoria, 74. 

 Frondicularia, 14. 

 Fusulina, 24. 



Gemmation, of Foraminifera, 15; of 



Infusoria, 69. 

 Globigerina, 23. 

 Goniospongia, 42. 

 Grantia, 30, 32, 36. 

 Gregarinarice, 51. 

 Gregarinidee, 2, 49 ; development of, 



50 ; classification of, 51. 



