Bull. U. S. F. C. 1902. 
Plate 5. 
Figs. 24-26. Ophiopholis aculeata. Aboral view (natural size). 
Fig. 27. Ophiopholis aculeata. Oral view (natural size). 
Figs. 28, 29. Ophiura brevispwa. Aboral view (natural size). 
Fig. 30. Ophiura brevispwa. Oral view (natural size). Shows regenerating arms. 
