PLATE Vn. 



Fig. 1. Ophionereis annulata. Dorsal view of the skeleton of two oral 



angles and one arm base, x 10. 

 Fig. 2. Ophionereis reticulata. Dorsal view of the skeleton of two oral 



angles. X 8. 

 Fig. 3. Opiiiocrasis marldanneri. Dorsal view of the skeleton of two oral 



angles and one arm base, x 15. 

 Fig. 4. Ophiocoma scolopendrina. Dorsal view of the skeleton of two oral 



angles and the first three vertebrae of a young specimen, x 15. 

 Fig. 5. Ditto. Dorsal view of the skeleton of two oral angles and one 



arm base. x4. 

 Fig. 6. OpJdomastix annulosa. Dorsal view of the skeleton of two oral 



angles and the first three vertebrae of a young specimen, x 10. 

 Fig. 7. Opldarthrum elcgans. Dorsal view of the skeleton of two oral 



angles and one arm base, with the radial shields turned up, i.e. 



in ventral view, x 7. 

 Fig. 8. OpMopsila riisei. Dorsal view of the skeleton of two oral angles 



and one arm base, with the radial shields turned up, i.e. in ventral 



view. X 14. 



