^y?^ /-fe- 



THE DANISH INGOLF-EXPEDITION. 



^ 



VOLUME IV. 

 1. 



ECHINOIDEA. 



(PART I.) 



BY 



TH. MORTENSEN. 



WlTir 2j PLATES AND 12 FIGURES IN THE TEXT. 



TRANSLATEI) BY TORBEN LUNDBECK. 



^►?K::*«f<— 



COPENHAGEN. 



PRINTED BY BIANCO LUNO. 

 1903. 



T 



