TABLE OF CONTENTS. VU 



Family Ophiacanthida; — Continued. Page. 



Ophiacantha vepratica Lyman 94 



viv-ipara Ljungman 96 



(Ophiopristis) permixta, new species 96 



(Ophiotreta) affinis, new species 99 



(Ophiotreta) sertala (Lyman) 102 



(Ophiotreta) valencicnncsi Lyman 102 



Ophiomitrella americana, new species 103 



levis, new species 105 



tevipellis (Lyman) 106 



porrecta, new species 107 



Ophiomitra robusta, new species 108 



valida Lyman 110 



Ophiopora bartletti (Lyman) Ill 



Ophiolimna littoralis Koehler Ill 



Ophioleda minima Koehler Ill 



Ophiotrema gracilis, new species 112 



Ophiocamax austera Verrill 114 



fasciculata Lyman 114 



Ophiologimus socundus, now species 115 



Ophiochiton grandis Verrill 116 



Family Ophiocomidte 116 



Ophiocoma alexandri Lyman 116 



echinata (Lamarck) 117 



pumila LUtken 117 



riisei Liitken 118 



Family Ophiothridd;i> 118 



Ophiothrix angulata (Say) 118 



lineata Lyman 120 



oerstedii Liitken 121 



suensonii Liitken 121 



con^■oluta, new species 122 



Family Ophioscolecidse 124 



Ophioscolex glacialis Miiller and Troschel 124 



Ophioleptoplax atlantica, new species 124 



Ophiobyrsella quadrispinosa, new species 125 



Family Ophiochondridae 127 



Ophiochondrus granulatus, new species 127 



armatus (Koehler) 129 



Family OphiomjTddse 132 



Ophiomyxa flaccida (Say) 132 



Ophiodera stimpsonii (Lyman) 132 



Family Hemieuryalidae 133 



Sigsbcia coniiera, new species 133 



sexradiata, new species 135 



Fanaily Astrochemidae 137 



Astrochema elongatum, new species 137 



Bibliographical References 141 



Explanation of Plates 143 



Supplementary list of West Indian Ophiurans 147 



Index 167 



