85. Magnified portion of Fig. 84 66 86. DYPHASIA ROSACEA 67 87. Medusa of LAFOEA 67 88. Colony of Coryne mirabilis (Agassiz) 68 89. Magnified head of Fig. 88 (Agassiz) 68 90. Free Medusa of Coryne (Agassiz) 68 91. TURRIS VESICARIA 69 92. BOUGAINVILLIA SUPERCILIARIS 70 93. Hydrarium of Bougainvillia 70 94, 95, 96. Medusæ buds of Fig. 93 71 97. Young Medusa just freed from the Hydroid 71 98. TUBULARIA COUTHOUYI (Agassiz) 72 99. Cluster of Medusæ of Fig. 98 (Agassiz) 72 100. Female colony of HYDRACTINIA POLYCLINA (Agassiz) 73 101. Male colony of the same (Agassiz) 73 102. Unsymmetrical Medusa of HYBOCODON PROLIFER (Agassiz) 74 103. Medusa bud of Hybocodon (Agassiz) 74 104. Hybocodon Hydrarium (Agassiz) 74 105. DYSMORPHOSA FULGURANS 75 106. Proboscis of Fig. 105 with young Medusæ 75 107. Young NANOMIA CARA 76 108. Nanomia with rudimentary Medusæ 76 109. Nanomia somewhat older than Fig. 108 77 110. Heart-shaped swimming bell of Nanomia 77 111. Cluster of Medusæ with tentacles having pendent knobs 78 112. Magnified pendent knob 79 113. Medusa with corkscrew-shaped tentacles 79 114. Medusa with simple tentacle 80 115. Adult Nanomia 81 116. Oil float of Nanomia 82 117. PHYSALIA ARETHUSA (Agassiz) 83 118. Bunch of Hydræ (Agassiz) 84 119. Cluster of Medusæ (Agassiz) 86 120. VELELLA MUTICA (Agassiz) 84 121. Free Medusa of Velella (Agassiz) 84 122. PTYCHOGENA LACTEA 86 123. Ovary of Ptychogena 87 124. SYNAPTA TENUIS 95 125. Anchor of Synapta 96 126. CAUDINA ARENATA 97 127. CUVIERIA SQUAMATA 98