74 



V. GENUS. PLATYCRINITES. 



' tiia&hftlS .ill 



BROAD-PLATED, LILY-SHAPED ANIMAL. 



Generic Character. 



A Crinoidal animal, with an elliptic or (in one species) pentagonal column, 

 formed of numerous jointe, having a few side arms at irregular distances. Pel- 

 vis, saucer shaped, formed of three unequal pieces, from which five large plate- 

 Jike scapulae proceed. 



Base provided with numerous fibres for attachment. 



Observation. 

 - 



The generic name has been derived from ntATrs, broad or flat, with re- 

 ference to the form of the scapulas. 



The want of costae supplied by the large plate-like scapulae gives the supe- 

 rior part of these animals a pentagonal appearance, and furnishes so conspi- 

 cuous a character, that they are readily distinguished from all other genera. 



I. SPECIES. PLATYCRINITES L^VIS. 



SMOOTH, BROAD-PLATED, LILY-SHAPED ANIMAL. 



Specific Character. 



A Crinoidal animal, with a column formed of very muscular elliptical joints 

 adhering by a transverse ridge. Round side arms, occasionally proceeding 

 from the column, whose joints adhere by radiated surfaces. Pelvis, saucer- 

 shaped, with the five scapula? adhering to it, from each of which an arm pro- 

 ceeds supporting two hands, having each two fingers. 



Pelvis and scapulae smooth. 



