384 Mr. F. A. Bather on British Fossil Crinoids. 



The last great family consists of descendants of Cyatho- 

 crinus, and for it may be best retained the name CyathO- 

 CRINID.E, though at the risk of some confusion with the 

 previous applications of the term ; but these applications have 

 been so numerous that one more can hardly make the^ con- 

 fusion worse confounded than it already is. It will be advisable 

 to separate this family into Cyathocrinites, Codiacrinites, 

 Achradocrinites, and Belemnocrinites. 



Possibly, however, the Family Belemnocrinid^:, as its 

 origin is so uncertain, may be allowed to stand as Wachsmuth 

 and Springer denned it (Rev. III. (193) Proa 1886, p. 117). 



The Classification then may be tabulated as follows :— 



FISTULATA. 



?Fam. Hybocrinid^e. Hybocriniis, Hoplocrinus, Baero- 

 crinus. 



Group A. 



Fam. 1. HETEROURlNlDiE. locrinus, Heterocrinus, Ec- 

 tenocrinus, Ohiocrinus, Anomalocrinus. 



Fam. 2. CalceOCRINID^E. Castocrinus, Proclivocrinus, 

 Calceocrinus. 



Fam. 3. Catillocrinid^e. Mycocrinus, Catillocrinus. 



Group B. 



Fam. 1. Dendrocrinidje. 



Series 1. Dendrocrinites. Merocrinus^Ottawacrinus^ 

 Dendrocrinus, Herpetocrinus (?), Homocrinus, 

 Parisocrinus. 



Series 2. Scaphiocrinites. Poteriocrinus, Scaphio- 

 crinus, WoodocvinuSj Zeacrinus^ Cosliocrinus, 

 Hydreionocrinus. 



Fam. 2. ? CARABOCRINID.E. Carabocrinus, Thenaro- 

 crinus. 



Fam. 3. EUSPIROCRINID^E. Euspirocrinus, Clostero- 

 crinus, Ampheristocrinus. 



Fam. 4. Decadocrinid^e. 



Series 1. Botryocrinites. Botryocrinus, Sicyo- 



crinns, Oncocri?ius } Vasocrinus, Barycrinus } 

 Atelestocrinus. 



