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Figs. 10. Dactylocrinus alpena n. sp 312 



Fig. 10(7. A flattened water-worn crown, with base broken off below radials ; anterior view. Shows 

 large ramules at intervals of about 4, and strong lateral buttresses on brachials. 

 Author's collection. 

 10b. Posterior view of same, showing narrow post. B, and space for anal plates — enlarged by 

 distortion of the raj's. 

 Hamilton Gr. ; Middle Devonian. Alpena, Michigan. 



Fig. II. Dactylocrinus tardus (Hall) 313 



Fig. II. Type of Hall's Forhesiocrinus lobatus var. tardus; posterior view. Shows post. B and 

 space for anal plates ; sharp basal cavity filled by tapering columnals ; large ramules at 

 intervals of 6 or 7. New York State Museum, Albany. 

 Waverly Gr. ; Lower Carboniferous. Richfield, Ohio. 



