TABLE OF CONTENTS. 
INTRODUCTORY PART. 
INTRODUCTION 
HisToRIcAL 
TERMINOLOGY . . - + «+ « 
MORPHOLOGICAL PART. 
PRIMARY AND SUPPLEMENTARY PLATES 38 
Tuer PLATES OF THE ABACTINAL SysTEM 38-88 
The Stem and its Appendages 38-52 
Basals and Infrabasals . 52-73 
The Radials . . : 68-73 
The Arms and Pinules . 73-88 
Tur PLATES OF THE ACTINAL SystEM 88-104 
The Orals . F 88-89 
Mouth and pean rie 99 
Tue SUPPLEMENTARY PLATES 
The distribution of the Plates and 
their relations to the different 
SYSTEMATIC PART. 
CLASSIFICATION . ‘ 144-172 
Definition of the Crinoidea and their 
Primary Subdivisions . 169 
Analysis of the Families 170 
Geological and Geographical Distri- 
bution of the Camerata 172 
DESCRIPTIVE. 
RETEOCRINIDAE . . 173-187 
Analysis of the Genera . 173 
Geological and Geographical Dis- 
tribution . 173 
Reteocrinus 176 
Xenocrinus « 182 
Tanaocrinus : 185 
THYSANOCRINIDAE . 188-214 
Analysis of the Genera . 188 
Geological and Geographical Distri- 
bution 188 
Thysanocrinus . 190 
Ptychocrinus 197 
Hyptiocrinus 200 
Idiocrinus 202 
Lampterocrinus 207 
Siphonocrinus . 209 
RHODOCRINIDAE . . 215-263 
Analysis of the Genera . 215 
Geological and Geographical Distri- 
bution .. . 216 
Rhodocrinns . ..- +--+ - 218 
Gilbertsocrinus . . . . . - 233 
Pace 
1-10 
11-31 
32-37 
105 
groups - - 105-123 
The Anal Plates and the Anus. 124-139 
INTERNAL Cavity or THE Catyx 140-142 
The Chambered Organ and the 
Axial Canals 140 
The Conyoluted Organ . 145 
Thylacocrinus . 248 
Diabolocrinus . 249 
Archeocrinus . 253 
Rhaphanocrinus 258 
Lyriocrinus 5 261 
MELOCRINIDAE . 264-329 
Analysis of the Gener oars . 264 
Geological and Geographical Distr 
bution 265 
Melocrinites 267 
Glyptocrinus 267 
Periglyptocrinus 277 
Stelidioerinus . 279 
Mariacrinus 281 
Macrostylocrinus . 285 
Melocrinus . 292 
Dolatocrinites 304 
Technocrinus 304 
*  Allocrinus 806 
Centrocrinus 308 
Dolatocrinus 310 
Stereocrinus 324 
Hadrocrinus a. On 
CALYPTOCRINIDAE . 830-359 
Analysis of the (Gener a. 330 
Geological and Geographical Distri- 
bution 330 
Eucaly ptocrinus 332 
Callicrinus . . + + + « « « 803 
