PLATE XLV. 



Pa(;e 



AoROCEiNus BADiATus W. aiul Sp 472 



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



AOROCKINUS UELICE (Hall) 481 



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



AoROCBixus PAKViBAsis W. and Sp 47.'5 



3«. Specimen with arms from the anterior side. 

 3S. Posterior view of the calyx. 



AoEOCijixus iMMATURUs W. and Sp 171 



4a. Lateral view of specimen with part of the arms, and portions of stem and 



cirri preserved. 

 ib. Posterior view of another specimen. 



AOROCRINUS IIELICE (?) 481 



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



AoROCRiNus cANALicuLATus M. and W 47.5 



Qa. Anterior view of the type specimen. (After iNFeek and Worthen.) 

 bh. Posterior view of the same. (After ]\Ieek and Worthen.) 



AOROCRINUS SUBACULEATUS (Hall) 47(j 



7«. Anterior view of the calyx. 



lb. Posterior side of the same. (.Vfter Hall.) 



DoRYCRixus UNicoRXTs (0. and Sli.) 4GS 



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. 



8(Z. Dorsal aspect of another large calyx. 



8e. Anterior view of a young specimen. 



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



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



AoROCRiNus PARVUS (Shumard) 477 



lln. Specimen with arms and stem. 



lib. Posterior side of calyx of a large specimen. 



