PLATE XXII. 



Page 



Mariaceinus Warreni Ringueberg 283 



Fig. 1. The type specimen. (Coll. Dr. E. 1ST. S. Ringueberg.) 



Mariaceinus Caeleyi (Hall) 282 



2a. Posterolateral view of calyx. (Coll. I. H. Harris.) 

 2b. Anterior view of same specimen. 

 2c. Ventral aspect of the same. 



Technocrinus spinulosus (Hall) 305 



3. The type specimen. (Am. Mus. Nat. Hist. 1ST. Y.) 



Meloceinus bainbridgensis H. and W 297 



4a. The type specimen ; side view. (After Hall and Whitfield.) 



46. Dorsal aspect of same. 



4c. The arms. (After Hall and Whitfield.) 



Meloceinus gracilis W. and Sp 298 



5. The type specimen ; side view. (Coll. J. M. Clarke.) 



Meloceinus Calvini W. and Sp 300 



6. The type specimen. (Coll. Prof. S. Calvin.) 



Melocrinus Tiefanyi W. and Sp 299 



la. The type specimen ; right posterior view. (Coll. A. S. Tiffany.) 

 lb. The basals of same. 



Melocrinus parvus W. and Sp 303 



8. The type specimen; anterior view (j*). (Coll. W. and Sp.) 



Melocrinus oblongus W. and Sp 300 



9. Lateral view of a very elongate calyx. (Coll. W. and Sp.) 



Melocrinus obconicus Hall 302 



10a. Lateral view of calyx. (Same collection.) 



10Z>. Ventral aspect of another specimen. (Same collection.) 



10c. The basals. 



