PLATE LVI. 



Page 

 ACTINOCRINUS DAPHNE (Hall) 574 



Fig. 1. Posterior view of a large specimen. (Coll. W. and Sp.) 



Cactocrinus thalia (Hall) 604 



2. Specimen with arms, described by Hall as Actinocrinus infrequens. (Mus. 



Comp. Zool.) 



Cactoceinus thetis (Hall) 614 



3. Posterior view of the calyx and anal tube. (Coll. W. and Sp.) 



4. A large specimen with arms. (Same collection.) 



Cactocrinus opusculus (Hall) 607 



5a. Specimen with arms. (Mus. Comp. Zool.) 



5b. Calyx, showing the left posterior ray and the anal interradius. (Coll. 

 W. and Sp.) 



Cactocrinus multibrachiatus (Hall) 617 



6. Anterolateral view of the calyx. (Coll. W. and Sp.) 



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



Cactocrinus lucina (Hall) 603 



8. Anterior view of a specimen with arms. (Mus. Comp. Zool.) 



9. Posterior side of the calyx ; from near Louisiana, Mo., described by Kowley 



and Hare as Actinocrinus imteatus. (Coll. R. P. Rowley.) 



Cactocrinus ectyfus (Meek and Worthenj 611 



10. Side view of a large specimen. (Coll. W. and Sp.) 



Actinocrinus gracilis W. and Sp 572 



11. A specimen with arms (I 1 ). (Mus. Comp. Zool.) 



