ECHINODERMA TA. 215 



FAMILY GLYPTOCRINID^:. Archseocrinus, Compsocrinus, Glyptocrinus, Pycno- 



crinus, Schizocrinus. 



FAMILY HAPLOCRINID^E. Coccocrinus, Haplocrinus. 



FAMILY HETEROCRINIDJE. Ectenocrinus, Heterocrinus, locrinus, Ohiocrinus. 

 FAMILY HYBOCRINID^:. Anomalocrinus, Hybocrinus. 

 FAMILY ICHTHYOCRINID^E. Cleiocrinus, Ichthyocrinus, Lecanocrinus, Mespilo- 



crinus, Nipterocrinus, Onychocrinus, Taxocrinus. 

 FAMILY MELOCRINID./E. Allocrinus, Dolatocrinus, Macrostylocrinus, Maria- 



crinus, Technocrinus. 

 FAMILY PISOCRINID^S. Pisocrinus. 

 FAMILY PLATYCRINID^E. Cordylocrinus, Eucladocrinus, Marsupiocrinus, Platy- 



crinus. 

 FAMILY POTERIOCRINID^K. Bursacrinus, Coeliocrinus, Dendrocrinus, Graphio- 



crinus, Homocrinus, Hydreionocriuus, Merocrinus, Ottawacrinus, Poter- 



iocrinus, Stemmatocrinus, Zeacrinus. 

 FAMILY RHODOCRINIDJE. Goniasteroidocrinus, Hadrocrinus, Lyriocrinus, 



Rhodocrinus. 



FAMILY SYNBATHOCRINIDJE. Synbathocrinus. 

 FAMILY TAXOCRINID^E. Cupulocrinus, Forbesiocrinus, Taxocrinus. 

 FAMILY XENOCRLNID.K. Xenocrinus. 

 FAMILY AFFINITY UNCERTAIN. Brachiocrinus, Closterocrinus, Cystocrinus. 



ORDER CYSTOIDEA. 



FAMILY AMYGDALOCYSTID^S. Amygdalocystites, Palseocystites. 



FAMILY ANOMALOCYSTID^E. Anomalocystites. 



FAMILY CARYOCRINID^E. Caryocrinus. 



FAMILY COMAROCYSTID^E. Comarocystites. 



FAMILY ECHINOCYSTID^E. Echinocystites. 



FAMILY EOCYSTID^E. Eocystites. 



FAMILY GOMPHOCYSTID^;. Gomphocystites, Hemicosmites. 



FAMILY HOLOCYSTID^E. Allocystites, Crinocystites, Holocystites. 



FAMILY H YBOC YSTID^S. Hy bocystites. 



FAMILY LEPADOCRINID^E. Apiocystites, Callocystites, Glyptocystites, Lepado- 



crinus, Pleurocystites, Sphaerocystites, Strobilocystites. 

 FAMILY PL AT YC YSTID^. Platycystites. 

 FAMILY UNCERTAIN. Heterocystites, Lysocystites, Malocystites, Porocrinus. 



ORDER BLASTOIDEA. 



FAMILY BLASTOIDOCRINID^. Blastoidocrinus. 



FAMILY CODASTERID^:. Codaster, Heteroschisma. 



FAMILY CODONITID^K. Codonites. 



FAMILY ELEUTHEROCRINID^E. Eleutherocrinus. 



FAMILY GRANATOCRINID^S. Granatocrinus, Schizoblastus. 



FAMILY NUCLEOCRINID^E. Nucleocrinus. 



FAMILY PENTREMITID.E. Pentremites, Pentremitidea. 



FAMILY STEPHANOCRINID^E. Stephanocrinus. 



FAMILY TROOSTOCRINID-E. Troostocrinus, Tricoelocrinus. 



