PLATE XLV. 



Page 

 AoEOCEiNus EADiATus W. aud Sp 472 



Fig. 1. A specimen with arms ; anterior side. 



AOEOCKINUS HELICE (Hall) 481 



2. Posterior view of the type specimen. (After Hall.) 



AoEOCEiNus PAEViBAsis W. and Sp 473 



3(1. Specimen with arms from the anterior side. 

 3b. Posterior view of the calyx. 



AoEOCEixus IMMATUEUS W. and Sp 471 



4«. Lateral view (Jf specimen with part of the arms, and portions of stem and 



cirri preserved. 

 46. Posterior view of another specimen. 



AOEOCEINUS HELICE (?) 481 



5. Anterior view; from a gutta-percha cast made in the natural mould. 



AoROCEixus cAXALicuLATUs M. and W 475 



6a. Aiiterior view of the type specimen. (After Meek and Worthen.) 

 6b. Posterior view of the same. (After Meek and Worthen.) 



AOROCRINUS SUBACULEATUS (Hall) 476 



7n. Anterior view of the calyx. 



7b. Posterior side of the same. (After Hall.) 



DoETCEiNus UNICORNIS (0. and Sh.) , 468 



8a. Anterior view of a specimen with arms. 



8J. The same view of a smaller specimen with part of the stem. 



8c. Ventral aspect of a large calyx. 



Sd. Dorsal aspect of another large calyx. 



8c. Anterior view of a young specimen. 



9. Posterior view of the form described by Hall as Actinocrinus tricornis. 



10. The form described by Hall as Actinocrinus pendens ; anal side. 



AoEOCEiNus PAEVus (Shumard) 477 



ll(n Specimen with arms and stem. 



lib. Posterior side of calyx of a large specimen. 



