KONGL. SVENSKA VETENSKAPS-AKADEMIENS HANDLINGAR.. Bandet 19. N:o 7 



ON 



S- Salhbnn. 



POURTALESIA 



A GENUS OF ECHINOIDEA 



SVEN LOVEN. 



WITH TWENTY ONE PLATES. 



COMMUNICATED TO THE R. SWEDISH ACADEMY OF SCIENCES JUNE 11 1S7 AND JUNE 7 1SS2. 



STOCKHOLM, 1883. 



KONGL. BOKTRYCKERIET, 



P. A. NOHSTEDT &i S6XER. 



