2 14 Southern Cross. 



VTIL ECIIINODERMA. 



Bv F. JEFFREY ]5ELL, M.A. 



(Plates XXVI-XXVIl I.) 



Tiii; collection of Ecliinoderma is poor in species though compara- 

 tively abundant in specimens. The condition in which they arrived 

 can hardly be said to be satisfactory, and it is to be seriously 

 considered by collectors whether they should continue to use formol 

 for objects which contain a large quantity of carbonate of lime. It 

 will be observed that the collecting stations were not numerous and 

 that there are but sliglit differences in the depth or temperature of 

 tlie water. 



The interest of the collection centres in the instructive series of 

 variations of Cycctlna simplex, and in the two well-marked new 

 genera of Ophiuroids. 



A. ANACTINOGONIDIATA. 

 I. HOLOTHURIOIDEA. 



1. CUCUMAUIA CROCEA. 



Holothuria crocea, Lesson, Cent. Zool. (1832), p. 153, PI. LIT. 



Cucumaria crocea, Wyv. Tlionisou, Jouni. Linn. Soc. XIIL (1878), ]>. 55; 

 Liiniport, Sccwalzcn (1885), p. 14'J. 



Sfatlon.—YTankliu Island, February 9th, lOOD, 10-24 fathoms, 

 29'H''YahT. 



Vistrihutum. — Apparently circumi)olar, as it has already been 

 reported from Kerguelen and the Falkland Islands. 



2. Thyone, sp. 



Tliere ia a live-bunded species in the collection which will, 1 hope, 

 be more fully represented in the collections of the ' Discovery.' 



