Sea 
to 
PLATE 24. 
1-3. Dermatodiadema globulosum A. ‘Ag. 
Seen from the abactinal side; Station 3381. 
Somewhat smaller specimen from the abactinal side; Station 3398. 
The same specimen as fig. 2, seen facing the right anterior ambulacrum. 
412. Dermatodiadema horridum A. Ag. 
Specimen with spines, seen from the abactinal side; Station 3413. 
The same as fig. 4, seen facing the odd anterior ambulacrum. 
Another specimen, partly denuded, seen from the actinal side; Station 3398. 
A somewhat smaller specimen than fig. 6, seen from the actinal side; Station 3413. 
The same as fig. 7, seen facing the right posterior ambulacrum. 
The same as fig. 7, seen from the abactinal side. 
A much smaller specimen, seen from the actinal side ; Station 3407. 
The same as fig. 10, seen from the abactinal side. 
A small specimen, partly denuded, seen from the abactinal side ; Station 3400. 
All figures natural size. 
