CONTENTS 



Pages 



1. A New Genus of Brittle Stars, y^OT/i/iicoB/uf by Alex Hill (Plate 1)—. 1- 6 



2. New Ophiurans of the Allan Hancock Pacific Expeditions by Fred C. 

 Ziesenhenne (Plates 2-9) 7- 60 



3. The Holothurioidea Collected by the Velero HI during the years 1932 



to 1948 Part I, Dendrochirota by Elisabeth Deichmann (Plates 10-30) 61-196 



4. New Eastern Pacific Sea Stars by Fred C. Ziesenhenne (Plates 31-34) 197-224 '-u^- 



5. A Report on the Echini of the Warmer Eastern Pacific, based on the 

 collections of the Velero HI by Hubert Lyman Clark (Plates 35-71) 



Text Figures 1-3 225-352 



Index 353-360 



6271.4 



