260 APPENDIX. No. IX. 



No, IX. 



ECHINODERMATA.i 



BY PROF. P. MARTIN DUNCAN, M.B., LOND., F.R.S., 

 PRES. GBOL. Soc. 



AND 



W. PERCY SLADEN, ESQ., F.G.S., F.L.S., ETC. 



I~THE Echinodermata collected in Smith Sound and at the 

 winter-quarters of H.M.SS. 6 Alert ' and 6 Discovery ' were 

 obtained by the naturalists of the expedition, Capt. H. W. 

 Feilden, and Mr. Hart, under the superintendence of Capt. 

 Sir Greorge Nares, K.N., F.R.S., under no small difficulty. 

 Apart from the trouble of dredging when the tangles froze on 

 coming out of the sea, the proceeding could not be frequently 

 attempted ; yet the number of specimens collected was con- 

 siderable. The collection, consisting of specimens admirably 

 cleaned and preserved in spirit, and of others equally well 

 taken care of in the dry state, was sent to the British 

 Museum. Dr. GKinther confided it to me for description 

 and classification ; and after I had determined the species, I 

 asked Mr. Percy Sladen, F.Gr.S., F.L.S., to examine the 

 forms independently and to join me in drawing up this re- 

 port. Our results were nearly the same ; but to my col- 

 league is due the new species of Asteracantkion. Dr. 

 Carpenter was good enough to examine and determine the 

 two species of Comatula. I am very glad to have this 

 opportunity of thanking Capt. Feilden for his assistance in 



1 Abridged from ' Ann. and Mag. Nat. Hist.' 1877, pp. 449-470. 



