THE DANISH 



INGOLF-EXPEDITION. 



VOL. IV, PART 2. 



CONTENTS: 



TH. MORTENS EN: ECHINOIDEA. (II.) 



PUBLISHED AT THE COST OF THE GOVERNMENT 



BY 



THE DIRECTION OF THE ZOOLOGICAI. MUSEUM OF THE UNIVERSITY. 



-•^lu^" 



COPENHAGEN. 



H. HAGERUP. 



PKINTl-.n BY BIANCO LUNC). 

 1907. 



