TABLE OF CONTENTS 



Preface I— III 



Terminology V— VII 



Morphological Part 1—87 



Calcification 1—7 



Cryptocyst and Gymnocyst 7—8 



Spines 9—10 



The Morphology of the Zooecium . . 10—22 



Rosette-Plates and Pores 22—32 



The Compensation-Sac 32—33 



Vestibulum 33—37 



The Operculum 37—46 



Polymorphism in the Bryozoa 46—49 



Ocecia 49—67 



The systematic characters in the 



Cheilostomatous Bryozoa 67—87 



The occurrence of one or several forms 



of individuals in the colony 71 — 73 



The Heterozooecia 73 — 75 



Anatomical characters 75 — 76 



Calcification 76—77 



The frontal wall : . 77 



The pores 77 



The spines 78—79 



The primary aperture 79 — 84 



The peristome 84 — 85 



The operculum 85 — 86 



The rosette-plates 86—87 



Synopsis of the Families and Genera 88 — 90 



Systematic Part 88 



Order Cheilostomata 88 



Suborder Anasca 88 



1st Division: Malacostega 88 



Page 



Family Aeteidae 92—93 



— Bicellariidae 93—116 



— Farciminariidae 116—122 



— Flustridae 122—130 



— Scrupocellariidae 130—143 



— Membraniporidae 143 — 156 



— Cribrilinidae 156—161 



2nd Division: Coilostega 161 



Family Microporidae 161—166 



Group Tubifera 



Family Steganoporellidae 167—170 



— Aspidostomidae 171—175 



— Thalamoporellidae 176—196 



— Setosellidae 196 



— Chlidoniidae 196-201 



— Alysidiidae 201—207 



3rd Division: Pseudostega 206 



Family Membranicellariidae 207 



— CeJlulariidae 209—213 



Suborder 'Ascophora 213 



Family Catenariidae 213—259 



— Onchoporidae 259—264 



— Euthyroidae 264-266 



— Crepidacanthidae 266—269 



— Euthyridae 269—273 



— Savignyellidae 273—274 



— Hippothoidae 274—281 



— Adeonidae 282-289 



— Reteporidae 290—296 



— Myriozoidae 296—301 



— Sclerodomidae 301—304 



