PLATE LXXIII. 



Page 

 EUCLADOCRINUS MILLEBEACHI ATUS W. and Sp 720 



Fig. 1. A large si>ecimen ; the tubular appendages hanging over the calj-x. 



EuCLADOCEINUS MILLEBRACHIATUS, var. IMMATURIS TV. and Sp. . . 722 



2. Dorsal view of a small specimen ; the tubular appendages directed 



horizontally. 



3. Ventral aspect of a larger specimen, showing the bases of the arms. 



EuCLADOCEINUS PLEUKOTIMINEUS (White) 724 



4. A large specimen, showing the dorsal side of the calj-x. 



EUCLADOCRINUS PR^NUNTIUS W. and Sp 723 



5. One of the type specimens, showing calyx and portions of the arms. 



Platyceinus huntsvill.e (Troost) W. and Sp 678 



G. A large specimen with inflated arms ; the plates of the calyx not ornamented. 

 7«. Another mature specimen with ornamented calyx plates, the arms gradually 



tapering. 

 111. A portion of one ray enlarged, showing the spinous processes at the sides of 



t>he arm plates, the waving suture lines between the lower brachials, and 



the arrangement of the pinnules (|). 

 8i. An immature specimen; the arms uuiserial to nearly one half of their 



length ({!)• 



9. A more mature specimen (p). 



10. A very young specimen, the arms composed of comparatively elongate plates, 



and uniserial almost to their tips (^). 



1 1 . The base of a highly ornamented specimen. 



12. The base of a smooth specimen. 



(All the specimens in the collection of Wachsmuth and Springer.) 



