xx LIST OF ILLUSTRATIONS 



FIG. PAGE 



34. Platoum stercoreum . . . 51 



35. Various forms of Foraminifera 52 



36. Shells of Foraminifera 53 



37. Hastigerina murrayi 54 



38. Dimorphism and alternation of generations in Polystomella . . 55 



39. Actinophrys sol 57 



40. Actinosphaerium eichhornii 57 



41. Various forms of Heliozoa 58 



42. Actinophrys sol, conjugation 59 



43. Lithocircus annularis 60 



44. Thalassoplancta brevispicula 61 



45. Aulactinium actinastrum 62 



46. Actinomma asteracanthion 62 



47. Collozoum inerme . 63 



48. Chlamydomyxa labyrinthuloides 64 



49. Labyrinthula ; . 65 



50. Didymium difforme 66 



51. Euglena viridis . 68 



52. Various forms of Flagellata 71 



53. Trypanosome .... 72 



54. Hsematococcus pluvialis 73 



55. Pandorina morum 74 



56. Volvox globator 75 



57. Heteromita rostrata . 76 



58. Various forms of Choanoflagellata 77 



59. Various forms of Dinoflagellata 79 



60. Noctiluca miliaris 79 



61. Monocystis. 80 



62. Gregarina . 82 



63. ,, development . . . .83 



64. Eimeria and Coccidium 84 



65. Coccidium, life-history 85 



66. Malaria parasite . . 86 



67. Myxidium and Myxobolus 87 



68. Sarcocystis miescheri 88 



69. Paramoecium caudatum 89 



70. ,, ,, conjugation 90 



71. Various forms of Ciliata 94 



72. 95 



73. Vorticella 96 



74. Zoothamnium arbuscula 97 



75. Opanna ranarum 98 



76. Various forms of Tentaculifera 100 



77. Diagram showing the mutual relationships of the Protozoa . . 103 



78. Sycon gelatinosum 106 



79. ,, ,, magnified 106 



80. ,, ,, transverse section 107 



-81. vertical section 108 



