TABLE OF CONTENTS. 



Page. 



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Preface v 



Table of Contents vn 



Introduction v 1 



Description of species 7 



Class Cystoidea 7 



Order Dichoporita '. . 7 



Family Ohirocrinidae 7 



Genus Chirocrinus 7 



Species Chirocrinus angulatus 7 



Family Callocystidse 8 



Genus Tetracystis 8 



Species Tetracystis fenestra tus 8 



Family Caryocrinidse 10 



Genus Caryocrinus 10 



Species Caryocrinus milligani 10 



globosus 11 



bulbulus 11 



Class Blastoidea 12 



Family Pentremitidse 12 



Genus Pentremites 12 



Species Pentremites godoni 13 



pyriformis 13 



elegans 14 



florealis 15 



sulcatus 16 



Family Troostocrinidse 17 



Genus Troostocrinus 17 



Species Troostocrinus reinwardtii 17 



Family Nucleocrinidae 18 



Genus Nucleocrinus 18 



Species Nucleocrinus verneuili 18 



globosus 19 



Family Orbitremitidye '. . . . 20 



Genus Orbitremites 20 



Species Orbitremites granulatus 21 



Class Crinoidea 22 



Order Monocyclica inadunata 22 



Family Heterocrinidse 22 



Genus Ectenocrinus 22 



Species Ectenocrinus canadensis 22 



Family Pisocrinidas 23 



Genus Pisocrinus 23 



Species Pisocrinus milligani ; 23 



VII 



