198 Messrs. Austin on neiv Genera 



divisions amount to forty. The rays are remarkably long in 

 proportion to the size of the body. Column circular. 



C brevidactylus, Austin. 

 The plates forming the cup agree with the typical character. 

 The rays are shorter and less numerous than in the preceding 

 species. Main rays five, divisions amounting to twenty or 

 more. Column circular, and varying in different stages of 

 growth. 



C. pentagonus, Austin. 

 Def. — The perisomic plates answer to the typical character. 

 Main rays five, subdivisions fourteen. Proboscis or oral tube 

 large and central, and covered with five vertical bands of plates. 

 Rays fourteen ? Column : upper portion pentagonal, gradually 

 becoming circular and moniliform. 



C. macrodactylus, Phill. sp. 



Family Encrinid^, Austin^ 

 contains the genera Encrinites, Mill. ; Eucalyptocrinites, Cu- 

 pressocrinites, Goldf., and Euryocrinites, Phill. 



Family Pentacrinid^. 

 P. rotundus, Austin, sp. 

 Def. — The only portion of this species known is a columnar 

 fragment, which differs from all other Pentacrinites in being 

 circular, but it still retains the peculiar generic character, in 

 the stellated crenulations on the articulating facets of the 

 columnar joints. These pentapetalous figures are more dilated, 

 to suit the circular form of the joints, than in others of the 

 genus. 



Family Marsupiocrinid^, 

 consisting of Marsupiocrinites and Crotalocrinites. 



Genus Crotalocrinites'^. 



Def. — Dorso-central plates five ; first series of perisomic 

 plates five ; second series five. On the latter are a series of 

 wedge-shaped plates which bear the rays : the exact number 

 of these plates is unascertained. Column with a pentapetalous 

 perforation. 



C rugosus, Miller, sp. 



Def. — The plates suiTounding the body agree with the ge- 

 neric character. Rays numerous, probably amounting to one 

 hundred. Column composed of thin joints articulating into 

 each other by radiating striae. The columnar canal is penta- 



* From krotalon, a bell. 



