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Plattcbinus aspee M. and W 690 



Fig. 9a. The type specimen. (Mus. Comp. Zool.) 



9b. Basal view of another specimen. (Mus. Comp. Zool.) 



Platycrinus ornigeanulus McCh 701 



10a. A fine specimen with arms, rejjresenting the typical form. (Mus. Comp. 



Zool.) 

 105. Dorsal aspect of a very short calyx ; showing the ornamentation. (Coll. 



W. and Sp.) 

 10c. A costal and two pairs of distichals. 



11a. A specimen with coarser ornamentation. (Same collection.) 

 115. A specimen with a somewhat different ornamentation. (Same collection.) 

 12a. A young specimen. (Coll. W. and Sp.) 

 125. A still smaller specimen (^). (Same collection.) 



Plattcrinus eminulus Hall 712 



IS'i. Anterior view of calyx. (Mus. Comp. Zool.) 



135. Posterior view of another specimen. (Same collection.) 



13c. Ventral aspect of the calyx. (Coll. W. and Sp.) 



Platyceinus scobina M. and W 695 



14a. The type specimen. (Mus. Comp. Zool.) 



145. Dorsal aspect of the calyx. (Coll. W. and Sp.) 



Platyceinus Gorbyi S. a. Miller 716 



15. Dorsal aspect of the calyx. (Mus. Comp. Zool.) 



