xx LIST OF ILLUSTRATIONS 



PAGE 



37. Shells of Foraminifera 



38. Hastigerina murrayi 5 



39. Dimorphism and alternation of generations in Polystomella . . 57 



40. Actinophrys sol . 5 ^ 



41. Actinosphaerium eichhornii . 58 



42. Various forms of Heliozoa 60 



43. Actinophrys sol, conjugation . 



44. Lithocircus annularis 



45. Thalassoplancta brevispicula . 63 



46. Aulactinium actinastrum . 64 



47. Actinomma asteracanthion . 64 



48. Collozoum inerme ... 65 



49. Chlarnydomyxa labyrinthuloides . 66 



50. Labyrinthula ... 67 



51. Didymium difforme . . 68 



52. Euglena viridis . .70 

 63. Various forms of Flagellata . . 73 



54. Trypanosorne . . 74 



55. Hsematococcus pluvialis . 75 

 66. Pandorina morum . . 76 



57. Copromonas subtilis . ... . 77 



58. Volyox globator 78 



59. Various forms of Choanoflagellata . ... 79 

 CO. Various forms of Dinoflagellata ... 81 



61. Noctiluca miliaris 81 



62. Monocystis 82 



63. Gregarina .84 



64. development 85 



65. Eimeria and Coccidium 86 



66. Coccidium, life-history 87 



67. Malaria parasites 88 



68. Myxidium and Myxobolus 89 



69. Sarcocystis miesoheri 90 



70. Pararncecium caudatum 91 



71. ,, ,, conjugation 92 



72. Various forms of Ciliata 96 



73. . . . 97 



74. Vorticella ... 98 



75. Zoothamnium arbuscula . . .... .99 



76. Opalina ranarum .... 100 



77. Various forms of Tentaculifera . 102 



78. Diagram showing the mutual relationships of the Protozoa . . 105 



79. Sycon gelatinosum . . 107 



80. magniti.-d . 107 

 ,, transverse section . . 108 



vertical section . 109 



83. Sycon gelatinosum, pore-membrane . .110 



84. ,, apopyle . 110 



