PALTE XXXI 



PAGE. 

 Fig I POTERIOCRINUS PROBOSCLDIALIS 518 



Side view of the anal side. 



Fig -2-:\ Poteriocrinus Van Hoenei 517 



View of the anal side and ventral tube. 3. View of another example with arms 

 and column. 



Pentremttes (Triccelocrinus) obliquatus 521 



nl -lb. Opposite views of same individual. 



ONYCHOCRINUS MAGNUS 520 



SCAPHIOCRINDS ABNORMIS 519 



Poteriocrinus Missouriensis, Shumard 



View of a very large and nearly perfect example, showing the long ventral tube 

 and the arms nearly to their extremities. 



Pentremttes (Triccelocrinus) Varsouvtensis 521 



Small individual from Monroe county, III, 



A larger example from "Warsaw, showing the pinnulae and a portion of the column. 



Fig. 



4 





4,7 :i 



Fig. 



5. 



Fig 



6 



Fig 



''■ 



Fig. 



8, SI. 





8. 





9. 



