74 



SIB, C. WrVILLE THOMSON ON THE MOBE OF 



iu lat. 50° 1' S., long. 123° 4' E., 1099 miles south-west of Cape 

 Otway, Australia, at a depth of 1800 fathoms, with a bottom of 

 Glohigerina-oozQ, and a bottom-temperature of 0°-3 C. (station 

 158). 



Fig. 11. 



Hymenasfer nohilis, Wy. Thomson. Half the natural size. 



Hymenaster nohilis (fig. 11) is 300 millims. in diameter from tip to 

 tip of the rays ; the arms are 55 millims. wide ; and, as in H. pellu- 

 cidus, a row of spines fringing the ambulacral grooves are greatly 

 lengthened and webbed ; and the web running along the side of 

 one arm meets and unites with the web of the adjacent arm, so 



