PLATE LXXXI. 



Page 



EUCALYPTOCEINUS CEASSUS Hall 342 



Fig. 1. A very large specimen with arms. (Coll. W. and Sp.) 



2. A smaller specimen with arms. (Same collection.) 



3. Calyx with arms removed, leaving the partitions enclosing the arms. (Same 



collection.) 



4. A specimen with an unusually broad base. (Same collection.) 



5. Ventral view of calyx with arms and partitions removed, showing the places 



for the attachment of the arms. (Same collection.) 



6. Showing the inner floor of the disk. (Same collection.) 



14. Inner floor of the third ring of plates in the disk, enlarged. (After Hall.) 



15. One of the plates of the third ring, enlarged. 



EucALYPTOCRiNus Elrodi S. A. Miller 339 



7«. A perfect specimen with arms, from Waldvon, Ind. (Mus. Comp. Zool.) 

 7b. Basal aspect of the same. 



8. A specimen from Hartsville, Ind., covered with elongate nodules. (Cull. W. 



and Sp.) 



9. Another specimen, showing the calyx and partition walls. (Same collection.) 



10. Another, showing the plates which form the partitions. (After Hall.) 



11. The plates covering and surrounding the anus. (Coll. W. and Sp.) 



12. The plates constituting the ventral disk. Those forming the two lower rings 



showing the inner floor, those of the two upper the outer surface. (After 

 Hall.) 



13. Inner floor of basals and radials. (After Hall.) 



