PLATE XXVII. 



PAGE. 



Fig. 1. POTEEIOCRIKUS COXANUS 269 



Anterior view of the body, aud the upper part of the ventral tube; natural 

 size. 



Fig. 2. POTEBIOCBINUS OCCIDENTALIS 278 



Side view of the type specimen, showing the anal plates, arms, and a part 

 of the column: natural size. 



Fig. 3. POTERIOCRINUS OBESTES 273 



Anterior view, showing the arms and tentacula. 



3 a. Posterior view of the same; natural size. 



Fig. 4. POTEBIOCBINUS BRLSRIUS 279 



Posterior side, showing the arms and tentacula. 



4 a. Anterior view of another individual; natural size. 



Fig. 5. BHODOCBINUS POLYDACTYLUS 305 



Posterior view; natural size. 



Fig. 6. POTERIOCRINUS SUBBAMULOSUS 284 



Anterior view of body and arms; natural size. 



Fig. 7. DICHOCBINUS COXANUS 313 



Anterior view of body and arms; natural size. 



Fig. 8. POTEBIOCBINUS ASPEB 278 



Anterior vie*w of body and arms; natural size. 



Fig. 9. POTEBIOCBINUS HAMILTONENSIS 273 



Posterior view of the body, arms and tentacula; natural size. 



Fig. 10. DICHCCBINUS HAMILTONENSIS 313 



Anterior view; natural size. 



