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Page. 
Figs. 74-80 . — Dipylidium ccininum: 
74. Strobila. Natural size 49 
75. Mature segment, enlarged to show the anatomy 49 
76. Gravid segment. Enlarged 49 
77. Head. Enlarged 50 
78. Egg packet. Enlarged 50 
79. Egg. Enlarged 50 
80. Larva. Enlarged 50 
Figs. 81-87 . — Hyrnenolepis nana : 
81. Head and strobila. Enlarged 52 
82. Head and isolated hook. Enlarged 52 
83. Hooks. Enlarged 52 
84. Proglottids, enlarged to show some of the anatomy 53 
85. Segment. Enlarged to show the anatomy 53 
86. Egg. Enlarged 53 
87. Larva in villus of intestine 53 
Figs. 88-95 . — Hyrnenolepis diminuta: 
88. Strobila. Natural size .• 55 
89. Head and neck of specimen from man. Enlarged 56 
90. Head and anterior portion of specimen from rat. Enlarged 56 
91. Segment showing position of testicles. Enlarged 56 
92. Male and female organs. Enlarged 56 
93. Gravid segment. Enlarged 57 
94. Egg. Enlarged 57 
95. Cystic stage 57 
Figs. 96-100 . — Hyrnenolepis lanceolata: 
96. Head and strobila. Natural size . 58 
97. Head with retracted rostellum and anterior portion of strobila. 
Enlarged 58 
98. Transverse section of segment, enlarged to show anatomy 59 
99. Egg. Enlarged 59 
100. Supposed cystic stage 59 
Fig. 101 . — Davainea proglottina: Strobila, enlarged to show anatomy 60 
Figs. 102-104, 106 . — Davainea salmoni: 
102. A portion of the double row of hooks on rostellum. Enlarged 60 
103. Hooks on a sucker. Enlarged 61 
104. A very young specimen. Enlarged 61 
Fig. 105. Mature segment of Davainea tetragona, enlarged to show the repro- 
ductive organs 62 
Fig. 106. Gravid segment of Davainea salmoni, enlarged to show the anatomy. 62 
Figs. 107-108 . — Davainea madagascariensis: 
107. Head and anterior portion. Enlarged' 63 
108. Gravid segment. Enlarged 64 
Figs. 109-113 . — Davainea asiatica: 
109. Strobila. Natural size 65 
110. Transverse section showing male organs. Enlarged 66 
111. Transverse section showing female organs. Enlarged 67 
112. Transverse section of gravid segment. Enlarged 67 
113. Sagittal section of gravid segment. Enlarged 68 
Figs. 114-119 . — Cysticercus cellulosse: 
114. Subretinal cysticercus. Natural size 69 
115. Cysticercus in anterior chamber: Enlarged 69 
116. Cysticercus in anterior chamber 69 
