KUI^GL. SVENSKA VETENSKAPSAKADEMIENS HANDLINGAR. Band 58. N:o 9. V 



RESULTS 



OF 



Dr. E. MJOBERGS 



SWEDISH SCIENTIMO EXPEDITIONS 



TO 



AUSTRALIA 1910-1913 



XXI. 

 ECHINOIDEA 



BY 



DR. TH. MORTENSEN 



WITH 5 PLATES AND 3 FIGURES IN THE TEXT 



STOCKHOLM 



ALMQVTST & WIKSELLS BOKTRYCKERI-A.-R. 



BERLIN LOiVDON PARIS 



E. FRIEDLANDER & SOHN WILLIAII WESLEY A SON I.IBRAIKIE C. KLINCKSIECK 



U CARLSTKASSE L'8 ESSEX STREET. STRAND II RtJE DK LILLE 



