DABLE 01 CONTENTS. xv 



CHAPTEB VIII.- Descriptions oi rn;B Species [continued] 



Subfamily Cryptoschismidse 27'.) 



Definition of genus Oryptoschisma 280 



Cryptoschisma Schulzi, d'Archiac and <!<• Veraeuil,sp. 28] 



Definition of genus Orophocrinus 28.'5 



Genera] characters 281 



Orophocrinus stelliformis, Owen and Shumard, sp. . . .'287 



var. campanulatus, Hambacli, var. . 289 



verus, Cumberland, sp 29() 



pentangularis, Miller, sp 292 



Order Irregulares 29-1 



Family Astrocriuidae 297 



Definition of genus Astrocrinus 297 



General characters 298 



Astrocrinus tetragonus, T. & T. Austin 300 



Benniei, Etheridge, jun 30] 



Bibliography 303 



