Plate 103. 

 1, 2. Brissopsis columbaris A. Ag. ; Station 3394. 



1. Actinal view of si)ecimen 48 mm. in length, same as PI. 100, figs. 6, 7. 



2. The same as fig. 1, seen from the abactinal side. 



3, 4. Toxobrissus pacificus A. Ag. ; Station 33o5. 



3. Seen from the actinal side. 



4. The same as fig. 3, seen from the abactinal side. 



5-7. Periaster tenuis A. Ag. 

 o. Fragment, showing the actinal part of the test from the interior ; Station 3399. 



6. Fragment, showing the abactinal part of the test denuded ; Station 339S. 



7. The same fragment as fig. 6, seen from the interior. 



All figures natural size. 



I> 



