XVI 
ILLUSTRATIONS. 
Fig. 44. Genus Antropora Norman, 1903 
45. Genus Megapora Hincks, 1877 
46. Genus Foveolaria Busk, 1884 
47 . Family Aeteidae Smitt, 1867 : 
48. Family Scrupocellariidae Levinsen, 1909 
49. Genus Scrupocellaria Van Beneden, 1844 
50. Genus Caberea Lamouroux, 1816 
51. Genus Nellia Busk, 1852 
52. Family Eucratiidae Hincks, 1880 
53. Genus Gemellaria Sa vigny, 1811 
54. Structure of the Coilostega 
55. Subfamily Onychocellidae Jullien, 1881 
56. Genera of the Onychocellidae 
57. Genus Rectonychocella Canu and Bassler, 1917 
58. Genus Velumella Canu and Bassler, 1917 
59. Genus Smittipora Jullien, 1881 
60. Anatomy of the subfamily Microporidae 
61. Genera of subfamilies Microporidae and Lunulariidae 
62. Genus Gargantua Jullien, 1888 
63. Genus Micropora Gray, 1848 
64. Subfamily Lunulariidae Levinsen, 1909. 
65. Family Aspidostomidae Canu, 1908 
66. Genus Rhagasostoma Kosch insky, 1885 
67. Genus Odontionella Canu and Bassler, 1917 
68. Genus Euritina Canu, 1900 
69. Genus Labiopora Levinsen, 1909 
70. Genus Crateropora Levinsen, 1909 
71. Family Steganop irellidae Ijevinsen, 1909 
72. Genus Siphon op ore! la Hincks, 1880 
73. Family Thalamoporellidae Levinsen, 1909 
74. Genus Thalamoporella Hincks, 1887 
75. Family Cellariidae Hincks, 1880 
76. Genus Cellaria Lamouroux, 1812 
77. Genus Cianotremella Canu, 1911 
78. Genus Macropora MacGillivray, 1895 
79. Structure of the Ascophora Levinsen, 1909 
80. Sketch showing structure of a costnle 
81. Genera of the Costulae 
82. Genus Membraniporella Smitt, 1873 
83. Genus Cribrilina Gray, 1848 
84. Genus Puellina Jullien, 1886 
85. Genus Gephyrotes Norman, 1903 
86. Genus Arachnopusia Jullien, 1886 
87. Genus Figularia Jullien, 1886 
88. Genus Aspidelectra Levinsen, 1909 
89. Genera of Acroporidae Canu, 1913 
90. Genus Acropora Reuss, 1869 
91. Genus Pachytheca Canu, 1913 
92. Genus Beisselina Canu, 1913 
93. Genus Hippothoa Lamouroux, 1821 (Hincks, 1880). . . 
94. Genus Trypostega Levinsen, 1909 
95. Genus Haplopoma Levinsen, 1909 
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