PLATE 34, i 
1-3. Phormosoma hispidum A. Ag. 
1. Interior view of an imperfect specimen showing the imbrication of the interambulacral 
areas and the reverse imbrication of the actinal system and ambulacral zones in a 
specimen measuring about 140 mm. in diameter ; Station 3400. 
2. A part of the actinostome, seen from the exterior, from fragments of a specimen of 
about the diameter of fig. 1; Station 3332. | 
3. The same fragment as fig. 2, seen from the interior. 
All figures natural size. 
