Prats 5, 
1-4. Centrocidaris Doederleini A. Ag.; all figures from a specimen 26 mm. in diameter ; 
Station 3369. 
Actinal system. 
. Abactinal system. 
. Coronal plates seen facing the odd anterior ambulacrum, with 7 primary coronal plates. 
. Seen facing the left ambulacrum. 
