768 



THE VOYAGE OF H.M.S. CHALLENGER. 



PHANEROZONIA 



Gymnasteriidse. 



Oymnasteria, Gray. 



(?) G. biserrata, von Martens 

 G. valvulata, Perrier . 



Tylaster, Danielssen and^Koren. 

 T. willei, Danielssen and Koren 



Porania, Gray. 



X P. antarciica, Smith . 



*P. glaber, Sladen . , 

 P. grandis, Verrill 



y P. magcllanica, Studer 



P. pulvillus (0. F. Miiller), f 

 Norman { 



*P. spiculata, Sladen . 



Marginaster, Perrier. 



M. echinulatus, Perrier 

 ]\f. flmbriatus, Sladen 

 M. peciinatus, Perrier 

 M. p&ntagonus, Perrier 

 M. (?) capreensis, Gasco, sp, 



Localities. 



Range in 



Depth : 



Fathoms. 



Larentuka. 

 Galapagos Islands. 



Off Spitzbergen, and between 

 Spitzbergen and Norway. 



Kerguelen ; Marion Island ; 

 Prince Edward Island; Cro- 

 zet Islands; South Georgia. 



Kerguelen Island. 



E. of North America. 



Off Patagonia ; in Strait of 

 Magellan. 



Off the coasts of Scandinavia 

 and Britain. 



Off Heard Island; off the 

 Arrou Islands. 



Off Barbados. 

 N. of Ireland. 

 Off coast of Yucatan. 



" Talisman " dredging, No. 37. 



Off Island of Capri. 



1 416-1200 | 



50-1600 



30-127 

 66-373 



45 



I 15-106 

 I 75-800 . 



69 

 1360 



95 

 218 



54-82 



Nature of the Sea- 

 Bottom. 



Clay; Biloculina clay; ^ 

 Bluish green clay. J 



Diatom ooze (1600 

 fathoms). 



Green sand. 



Coarse gravel ; Vol- 

 canic mud ; Green 

 mud. 



O) 



(2) 



(3) 



(5) 

 (?) 



C) 

 (8) 



('■') 



(10) 



(11) 



(12) 

 (13) 

 (») 



