TABLE OF CONTENTS 



Page 



Foreword 



Systematic discussion of the fauna 2 



Order Forcipulata 2 



Synopsis of the known suborders and families of Forcipulata 3 



Suborder Brisingina 4 



Family Brisingidae 



Synopsis of the genera of Brisingidae 4 



Genus Brisinga 7 



Genus Craterobrisinga 7 



Genus Brisingenes 11 



Genus Brisingella 12 



Genus Aslroslephane 19 



Genus Slegnobrisinga 20 



Genus Aslrolirus 20 



Genus Freyellaster 21 



Genus Freyella 24 



Genus Astrocles 29 



Suborder Asteriadina 



Family Zoroasteridae 31 



Genus Zoroaster • 33 



Genus Myxoderma 44 



Family Asteriidae 56 



Synopsis of the subfamilies of Asteriidae 56 



Subfamily Pedicellasterinae 57 



Key to the known genera of Pedicellasterinae 57 



Genus Pedicellasler 58 



Genus Peranaster 67 



Genus Hydraslerias 68 



Genus Anteliaster 69 



Genus Tarsaster 75 



Genus A mpherasler 80 



Subfamily Labidiasterinae 88 



Synopsis of the genera of Labidiasterinae 88 



Genus Rathbunaster 88 



Subfamily Coscinasteriinae 93 



Key to the known genera of Coscinasteriinae 94 



Genus Slylasterias 96 



Genus Distolasterias 102 



Genus Sclerasterias 105 



Genus Astromctis 118 



Genus Coscinaslerias 128 



Subgenus Coscinaslerias 128 



Subgenus Stolasterias . 129 



Genus Marthasterias 129 



Genus Astroslole 130 



Genus Meyenasier 130 



Genus Auslraliaster 131 



Genus Lethaslerias 131 



Genus Orlhasterias 139 



Subfamily Pycnopodiinae -- 148 



Genus Lysastrosoma 148 



Genus Pycnopodia 153 



Explanation of plates 162 



Index 243 



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