Ingolf Expeditiomn IV, 2. 



Th. Mortensen. Echinoidea II. Tab. I. 



Th. Hlocli fot. 



rnclit X- Crone phototgp. 



13 Spatangus altus Ltk. 45 Spatangus Baschi Lnv. 67 Brisaster (Schizaster) fragilis (Dub. Kor.). 



