PLATE IV 



Figs. 1-7. Amphipneustes similis, n.sp. 



I, 2. Female specimen, oral side (i) and aboral side (2). 



3. Female specimen, aboral side (Station 170) ; slightly abnormal, the 

 right anterior petal being undeveloped. 



4. Male specimen, aboral side. 



5. Female specimen (St. 180), aboral side. 



6. Male specimen, side view. 



7. Female specimen, side view. 



Fig. 8. Amphipneustes Lorioli, Koehler. Aboral side. 



Figs. 9, 10. Echinocardium connectens, Mortensen (?). Aboral side (q); 

 side view (10). 



All figures natural size. 



