PLATE XXI. 



Page 



Peeiglyi'TOCixus Billingsi W. and Sp 277 



Fig. In. Posterior view of a specimen with arms and stem. (Coll. John Stewart, 

 now in the Canada Survey Museum at Ottawa.) 

 lb. Another specimen in the same collection, showing the left postero-lateral 

 ray and anal interradius. 



Peeiglyptocrinus peiscus (Billings) 278 



2. The type specimen. (Museum Geol. Surv., Canada.) 



Glyptoceinus Dyebi (?) 271 



3a-c. Young specimens, probably of G. Di/eri (f). 



3fZ. Type of Miller's PyCTioc;'mM« <S/(.a^ert (I). (Coll. S. A. Miller.) .... 272 

 3e. Type of Miller's Fycnocrinus Shafferi, var. germanus (^). (Same collection.) 

 3/. A somewhat larger specimen (?). (Coll. W. and Sp.) 



Glyptoceinus decadactylus Hall 270 



4a. Inner floor of the dorsal cup (f). (Coll. E. O. Ulrich.) 

 Ah. Interior view of the basal cup (f ). The angles of the axial canal directed 

 interradially. (Coll. W. and Sp.) 



Glyptoceinus Foenshelli Miller 276 



5. Interior view of the basal cup (^*). The angles of the axial canal directed 

 radially. (Coll. I. H. Harris.) 



Glyptoceinus Dyeei Meek 271 



C. Calyx, showing the posterior side of a large, highly ornamented specimen. 

 (Coll. E. 0. Ulrich.) 



CoMPSOCEiNus miamiensis S. A. Miller 518 



la. The type specimen; posterior side. (Coll. I. H. Harris.) 

 Ih. Anterior view of another specimen. (Coll. W. and Sp.) 



CoMPSocKiNus Haeeisi S. a. Miller 517 



8«. One of the type specimens; lateral view (f*). (Coll. I. H. Harris.) 

 86. Posterior view of another type specimen (f). (Same collection.) 



