730 



THE VOYAGE OF H.M.S. CHALLENGER. 



PHANEROZONIA. 



PORCELLANASTERIDJE. 

 PoRCELLANASTERINiE. 



Hyphalaster, Sladen. 

 H. parfaiti, Perrier . 

 *H. planus, Sladen 



Thoracaster, Sladen. 

 *T. cylindratus, Sladen 



Pseudaster, Perrier. 



P. cordifer, Perrier . 



Subfamily CTENODisciNiE, Sladen. 

 Ctenodiscus, Miiller and Troschel. 

 *G. australis, Liitken . 



C. cornicidatus (Linck), Perrier 



*G. procurator, Sladen 



Family Astropectinidm, Gray, 

 emend. 

 Subfamily Astropectininje, 

 Sladen. 



Craspidaster, Sladen. 



x G. hesp>erus, Miiller and Troschel, ) 



Localities. 



sp. 



Gulf of Gascony. 



53° 55' 0" S., 108° 35' 0" E. 



Between the Canary and Cape 

 Verde Islands. 



Range in 



Depth : 



Fathoms. 



N. of Azores. 



E. of South America. 



Scandinavian and N. American 

 coasts ; Greenland ; Spitz- 

 bergen and Nova Zembla ; 

 Kara Sea. 



W. of South America. 



China ; Japan ; Philippine 

 Islands ; Banka Straits ; 

 Singapore. 



2G17 

 1950 



2400 



2219 



55-600 



7-632 



40-1325 



10-20 



Nature of the Sea- 

 Bottom. 



Diatom ooze. 



Globigerina ooze. 



(i) 



(2) 



(3) 



W 



Sand ; Green sand. 



Mud and soft clay, 

 hard occasionally. 



Blue mud. 



(5) 



(fi) 



(<) 



Mud. 



(8) 



