PLATE 79. 
1-4. Cystechinus Loveni A. Ag. ; Station 3415. 
. Abactinal system and adjoining plates of specimen 88 mm. in length (Pl. 75, fig. 2). 
. Fragment showing the abactinal system and adjoining plates of specimen about 85 mm. 
in length, seen from the interior. 
. Fragment of specimen about 80 mm. in length, showing the abactinal side of the test, 
seen from the interior. 
. Fragment of specimen about 20 mm. in length, showing the abactinal system and 
adjoining plates. 
eis in | i 
