EOHINODBRM LARV^. 497 



Plate VI. 



Fig. 37. Ventral view of the ophiopluteus doubtfully 

 correlated by Mortensen with Ophiopholis 

 aculeata. 



Fig. 37a. Posterior portion of the skeleton of the same. 



Fig. 38. Ventral view of an " epauletted " ophio- 

 pluteus. 



Fig. 38a. Posterior portion of the skeleton of the same. 



Fig. 39. Ventral view of a pluteus paradoxus, Mull., 

 correlated by Mortensen with Ophioglypha 

 albida (Forbes). 



Fig. 39a. Posterior portion of the skeleton of the same. 



Fig. 40. Dorsal view of a metamorphosing pluteus 

 paradoxus. 



Fig. 41. Oral view of a post-larval Ophiura albida, 

 Forbes. 



Fig. 42. Post-larva of the same. From an unstained 

 preparation. 



Plate VII. 



Fig. 43. Ventral view of the ophiopluteus correlated by 

 Mortensen with Ophiura ciliaris (Linn.). 



Fig. 43a. Posterior portion of the skeleton of the same. 



Fig. 44. Dorsal view of an ophiopluteus compressus. 



Fig. 44a. Posterior portion of the skeleton of the same. 



Fig. 45. The same specimen more highly magnified. 



Fig. 46. An unidentified ophiopluteus, in which meta- 

 morphosis is nearly complete. 



Fig. 4G.\. Posterior portion of the skeleton of the same. 



Fig. 47. Pelagic post-larva of the same. 



Fig. 48. Pelagic post-larva not yel identified. 



