OPHIURANS OF THE PHILIPPINE AND ADJACENT WATERS. 467 



Plate 68. 



Fig. 1. Amphioplus luctator from station 5358; ventral surface. 



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



3. A specimen from station 5339 ; ventral surface. 



4. Amphipholis toripes from station 5375; ventral surface 



5. The same; dorsal surface. 



6. Amphioplus lucidus from station 5161 ; ventral surface. 



7. Another specimen from the same station ; ventral surface. 



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



9. A specimen from station 5371 ; ventral surface. 

 10. The same ; dorsal surface. 



Plate 69. 



Fig. 1. Amphiura demissa from station 5492 ; ventral surface. 



2. The same ; dorsal surface. 



3. AmpModia debita from Otaru ; ventral surface. 



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



5. Amphiura ambigua from station 5158; portion of the ventral surface 



of an arm. 



6. The same; ventral surface. 



7. Amphilepis remittens from station 5637; dorsal surface. 



8. The same ; ventral surface. 



9. Amphilepis protecta from station 5359 ; dorsal surface. 



10. The same; ventral surface. 



11. Amphiodia crassa from station 5282; ventral surface. 



Plate 70. 



Fig. 1. Amphipholis kochii from Hakodate ; ventral surface of the entire speci- 

 men. 



2. The same; ventral surface, more magnified. 



3. The same ; dorsal surface. 



4. Amphipholis misera from station 5537 ; dorsal surface. 



5. The same; ventral surface. 



6. A specimen from station 5371 ; ventral surface. 



7. The same; dorsal surface. 



8. A specimen from Hakodate; ventral surface. 



9. Amphioplus relictus; a specimen on which the dorsal surface of the 



disk has been raised to show the mouthpieces on the interior surface. 



Plate 71. 



Fig. 1. Ophiocentrus aculeatus from station 5302 ; dorsal surface. 



2. The same; dorsal surface of the disk, more magnified. 



3. The same ; ventral surface. 



4. Amphioplus relictus from station 5206 ; dorsal surface. 



5. A specimen from station 5207 ; ventral surface. 



6. A specimen from Manila Harbor; ventral surface. 



7. A specimen from Kagoshima ; ventral surface. 



8. Another specimen from Kagoshima ; dorsal surface. 



Plate 72. 



Fig. 1. Ophiocoma doderleini; Loriol's type; dorsal surface. Reduced. 



2. The same ; ventral surface. Reduced. 



3. The same ; magnified portion of the dorsal surface. 



