PLATE 12. 



Ophiothrix brachyactis H. L. Clark. Tortugas, Florida. 



Fig. 1. Aboral view. X 6. 



2. Oral view. 



Ophiothrix liodisca H. L. Clark. Mer, Murray Islands, Australia. 



3. Aboral view. X 3. 



Ophiothrix lineata Lyman. Sand Key, Florida. 



4. Aboral view. X 1.8. 



Ophiothrix hybrida H. L. Clark. Fiji (or Samoa). 



5. Aboral view. X 3. 



Ophiothrix dtjmosa Lyman. Pacific Grove, Cal. 



6. Aboral view. X 4. 



Ophiogymna elegans Ljungman. Singapore. 



7. Aboral view. X 4. 



8. Oral view. 



