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 Platyceinus aspee M. and W 690 



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



95. Basal view of another specimen. (Mus. Comp. Zool.) 



Platycbinus oenigbanulus McCh 701 



10a. A fine specimen with arms, representing 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. 



11«. 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 Q}). (Same collection.) 



Platycbintts eminulus Hall 712 



13a. 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 Goebyi S. A. Miller 716 



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



