464 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



FIG. 5. The same ; portion of the ventral surface of an arm. 



6. Ophiothrix ciliaris from the Paris Museum ; dorsal surface. 



7. Another smaller specimen ; dorsal surface. 



8. Ophiothrix miles from the Sunda Islands ; dorsal surface. 



9. The same ; portion of the dorsal surface of an arm. 

 10. The same ; portion of the dorsal surface of the disk. 



PLATE 53. 



FIG. 1. Ophiothrix stelligera from station 5147 ; dorsal surface. 



2. The same ; magnified portion of the dorsal surface of the disk. 



3. The same ; ventral surface. 



4. A specimen from the Philippines ; dorsal surface. 



5. Another specimen from station 5147; dorsal surface of the disk. 



6. Ophiothrix ciUaris; the specimen in the Paris Museum ; ventral surface. 



7. The same; dorsal surface. 



PLATE 54. 

 Ophiothrix stelligera. 



FIG. 1. A specimen from station 5145; dorsal surface. 



2. The same ; portion of the dorsal surface. 



3. Another specimen from station 5142; portion of the dorsal surface. 



4. A specimen from station 5141 ; dorsal surface. 



5. The same ; dorsal surface of the disk. 



6. The same; ventral surface. 



PLATE 55. 

 Ophiothrix stelligera. 



FIG. 1. A specimen from station 5144 ; dorsal surface. 



2. The same; dorsal surface, more magnified. 



3. A specimen from station 5146 ; dorsal surface. 



4. The same ; dorsal surface, more magnified. 



PLATE 56. 



FIG. 1. Ophiothrix elegans from station 5179 ; dorsal surface. 



2. The same ; dorsal surface, more magnified. 



3. The same ; ventral surface. 



4. Ophiothrix stelligera from station 5147; dorsal surface. 



5. A specimen from station 5142; dorsal surface. 



6. A specimen from station 5139 ; dorsal surface. 



7. A specimen from station 5146; 'dorsal surface. 



PLATE 57. 



FIG. 1. Ophiothrix spinosissima from station 5108; dorsal surface. 



2. The same; ventral surface. 



3. Ophiothrix armata from Banda; dorsnl surface. 



4. The same; ventral surface. 



5. A specimen from Celebes ; dorsal surface. 



6. The same; ventral surface. 



7. Ophiothrix spinosissima from station 5165 ; dorsal surface. 



