4 H. N. MOSELEY. 



in 675 fathoms, July 10th, 1873. Ibid., July 10th, 1873. 

 Lat. 37°26' N., long. 25°14' W., 1000 fathoms. 



Flabellum variahile (Semper), Arufura sea, 40 fathoms. 



Flahellum sp., off Cebu, Philippines, 100 fathoms. 



Flabellum sp., April 4th, 1874, 120 fathoms. 



Flabellum, September 26th, 1874, off Tion Folokker Islands, 

 126 fathoms. 



Fungia symmetrica, occurring at great depths in all parts 

 of the world. 



Steplianophyllia formosissima, off Cebu, Philippines, lOO 

 fathoms. 



Steplianophyllia sp., Lat. 33°3rS., long. 74°43'W., 21G0 

 fathoms. 



Actinia with a coriaceous test, off Japan, 565 fathoms. 



Discosoma sp., lat. 33°42' S., long. 78°18' W., 1375 

 fathoms. 



Wiizostomean Acalep)h (Cassiopeia), found in the trawl 

 used in 2040 fathoms, February 11th, 1876, in lat. 42°3r S., 

 long. 36°2rW. 



Further, several sjaecies of Rhizostoma occurring in our 

 northern seas have a brown colouring matter which is pro- 

 bably polyperythrin, but for the examination of which op- 

 portunity has not presented itself to me. 



In the deep sea actinia obtained off Japan, the outer sur- 

 face of the animal was of a pure white, and the colouring 

 matter was found in the body cavity only intensely tinging 

 the surfaces of the mesenteries and viscera. In the discosoma 

 the colouring matter occurred in bands or streaks on the 

 disc only. In the Rhizostomean, which was unfortunately 

 too much mutilated for identification, the whole of the sur- 

 face of the umbrella was thickly covered with the pigment. 

 A second similar acalej)]! was obtained in the South Atlantic 

 likewise coloured with polyperythrin, but was like the other 

 specimens very much torn. 



Polyperythrin has not been met with in any red coloured 

 compound corals nor in any red Actiniadee living in shallow 

 water, although many such occurring in various parts of the 

 world have been examined, including the red and pink Hy- 

 drocorallinoe (Stylasteridaj). Probably, in the ninnerous me- 

 dusae Avhich have a red brown pigment, the pigment is polype- 

 rythrin. I lately saw numerous Rhizostomeans cast up on the 

 Norwegian coast thus coloured, but had not then a spectro- 

 scope available. 



Jdamsia. — An Adamsia obtained off the Pliilippines in 

 eighteen fathoms adherent to the shell of a Pagurus pre- 

 sented pink stripes on its external integument, which was of 



