PLATE XX. 



Page 

 Glyptoceinus Dyeei (Meek) 271 



Fig. la. A large specimen with arms. (Coll. I. H. Harris.) 



lb. Posterior view of a large, flattened specimen of tLe type of Gl. Eichardsoni 



Wetherby, showing the fixed pinnules. (Coll. W. and Sjj.) 

 Ic. Tlie base, showing the angles of the axial canal to be interradial. (Coll. 



Mr. E. H. Vaupel.) 



Glyptocrinus maeginatus Billings 275 



2. The type specimen; postero-lateral view. (Mus. Geol. Snrv., Canada.) 



Glyptoceinus Foenshelli Miller 276 



3. The calyx and part of the stem. (Coll. I. H. Harris.) 



Glyptoceinus decadactylus Hall 270 



ia. A very large specimen. (After Meek.) 



46. Posterior view of calyx. (Coll. I. H. Harris.) 



4c. Ventral aspect of a rather small specimen (f). (Coll. E. 0. Ulrich.) 



M. Ventral aspect of an older specimen (f). (Coll. W. and Sp.) 



4e. Portions of the arms, showing covering-plates (f). (Same collection.) 



Glyptoceinus eamulosus Billings 273 



5a. One of the type specimens; lateral view. (Mus. Geol. Surv., Canada.) 

 5b. Another type specimen, showing the ramifications of the arms. (Same 

 collection.) 



Glyptoceinus oenatus Billings 274 



6«. The type specimen ; anterior view. (Mus. Geol. Surv., Canada.) 

 6b. Posterior view of same specimen. 



