REPORT ON THE HEXACTINELLIDA. 

 2. Rossella velata, Wp'ille Thomson. 



143 



A beautiful species of Rossella was dredged by Dr. Gwyii Jeflreys in the Athuitic, 

 off the mouth of the Strait of Gibraltar, from a depth of 651 fothoms, and is figured 



Fig. i.— Rossella velata, Wwille Tliomson. 



and shortly described by Wyville Thomson.' Of this form the Challenger Expedition 

 procured no specimen, but I obtained for investigation a specimen dredged by Wyville 



1 Depths of the Sea, pp. 418, 419. 



