TABLE OF CONTENTS. VII 



Descriptions of species Continued. 

 Family Aniphiuridte Continued. 



Genus Amphiura Continued. I'agu. 



Amphiura leptodoma 143 



euopla 144 



acrystata 145 



ecnomiotata 148 



trachydisca 149 



niicraspis 150 



pycnostoma 151 



psilopora 153- 



Amphiodia urtica 154 



occidentalis 155- 



eraterodmeta 155 



macraspis 157 



euryaspis 158 



periercta 160 



ancistrota 161 



digitula 162 



strongyloplax 164 



psilochora 165 



Amphipholis pugetana 166 



Amphioplus rhadinobrachius 167 



acanthinus 168 



hexacanthus 170 



megapomus 170 



Amphilepis platytata 171 



Amphilimna pentacantha 172 



Ophionereis eurybrachiplax 174 



Genus Ophiocrasis 175 



Ophiocrasis dictydisca 175 



Ophiodoris pericalles 177 



Family Ophiohelidae 179 



Ophiomitra cardiomorpha 179 



discycla 181 



habrotata 182 



microphylax 184 



bythiaspis 185 



polyacantha 187 



codonomorpha 188 



acontophora 190 



Ophiocamax lithosora 191 



polyploca 193 



Family Ophiacanthidae 195 



Ophiacantha bidentata 195 



pentagona 196 



levispina 198 



adiaphora 199 



rhachophora 201 



omoplata 202 



acanthinotata 203 



anchilabra 204 



trachybac-tra ' -'<)<; 



diploa 207 



