XrV LIST OF ILLUSTRATIONS. 



Page. 

 Fig. 70. Amphiodia digitula. X 8. a, from above; b, from below; c, side 

 view of three arm joints near disk; d, outgrowths on upper end of 

 genital scales, greatly enlarged Ifi3 



71. Amphiodia strongyloplax. X9. a, from above; b, from below; 



c, side view of three joints near disk 164 



72. Amphiodia psilochora. X6. a, from above; b, from below; c, side 



view of three arm joints near disk 16-5 



73. Amphipholis pugetana. X12. a, from above; b, from below; c, side 



view of three arm joints near disk 167 



74. Amphioplus rhadinobrachius. X8. a, from above; b, from below; 



c, side view of three arm joints near disk 168 



75. Amphioplus acanthinus. X4. a, from above; 6, from below; c, side 



view of three arm joints near disk; d, regenerated disk and three 

 regenerated arms 169 



76. Amphilepis platytata. X6. a, from above; b, from below; c, side 



view of three arm joints near disk 171 



77. Amphilimna pentacantha. X5. a, from above; b, from below; 



c, side view of three arm joints near disk 172 



78. Ophionereis eurybrachiplax. a-c, from Japan, X 3; d-f, from Cali- 



fornia, X 2. a and d, from above; b and e, from below; c and/, side 

 view of three arm joints near disk 174 



79. Ophiocrasis dictydisca. a-c, X7; d-g, Xll. a, from above; b, from 



below; c, side view of two arm joints near disk; d, a younger speci- 

 men, from above; e, the same, from below;/, side view of three 

 arm joints near disk; g, another young specimen from above, show- 

 ing the inequality of the two trios of arms.-. 176 



80. Ophiodoris pericalles. X4. a, from above; b, from below; c, side 



view of three arm joints near disk 178 



81. Ophiomitra cardiomorpha. X4. a, from above; b, from below; 



c, side view of two arm joints near disk 180 



82. Ophiomitra discycla. X9. a, from above; b, from below; c, .side 



view of two arm joints near disk 181 



83. Ophiomitra habrotata. X15. a, from above; b, from below; c, side 



view of two arm joints near disk 183 



84. Ophiomitra microphylax. X6. a, from above; b, from below; 



c, side view of two arm joints near disk 184 



85. Ophiomitra bythiaspis. X5. a, from above; b, from below; c, .side 



view of two arm joints near disk 186 



86. Ophiomitra polyacantha. X8. a, from above; 6, from below, c, side 



view of two arm joints near disk 187 



87. Ophiomitra codonoraorpha. X4. a, from above; b, from below; 



c, side view of two arm joints near disk 189 



88. Ophiomitra acontophora. X16. a, from above; b, from below; 



c, side view of three arm joints near disk 190 



89. Ophiocamax lithosora. X3. a, from above; b, from below; c, side 



view of two arm joints near disk 192 



90. Ophiocamax polyploca. X3. a, from above; b, from below; c, side 



view of two arm joints near disk 193 



91. Ophiacantha adiaphora. X7. a, from above; h, from below; c, .side 



view of three arm joints near disk 199 



92. Ophiacantha rhachophora. X8. a, from above; b, from below, 



c, side view of two arm joints near disk 201 



93. Ophiacantha omoplata. X8. a, from above; b, from below; c, side 



\iew of two arm joints near disk 202 



