PLATE 10. 



•Ophiactis plana Lyman. Off Georgia, U. S. A., 225 fms. 



Fig. 1. Aboral view. X 8. 

 2. Oral view. 



Ophiactis lokicata Lyman. OiT Alligator Reef, Florida, 110 fms. 



,3. Aboral view. X 8. 

 4. Oral view. 



Ophiactis simplex (Leconte). Magdalena Bay, Lower California. 



5. Aboral view. X 7. 



6. Oral view. 



Ophiactis hemiteles H. L. Clark. Mer, Murray Islands, Australia. 



7. Aboral view. X 5. 



8. Oral view. 



Ophiactis quadrispina H. L. Clark. Philippine Islands. 



9. Aboral view. X 5. 

 10. Side view of seven arm-segments. X 10. 



Ophiactis asperula (Philippi). Sandy Point, Patagonia. 



11. Aboral view. X 3. 



12. Oral view. 



Ophiophragmus brachyactis H. L. Clark. Sombrero Key, Florida. 



13. Aboral view. X 4. 



14. Oral view. 



