SEA LTLIES, STARFISHES, ETC. CLARK. 107 



Genus Ch^todiadema, Mortensen. 

 Ch^todiadema granulatum, Mortensen. 

 Chcetodiadema granulatum, Mortensen, Vid. Med., 1903, p. 1. 



This is another East Indian species, not previously known 

 from south or east of Torres Strait, whose range the " Endea- 

 vour " has found to extend to southern Queensland. The 

 " Challenger " took some small specimens west of Torres 

 Strait, which were recorded as Astropyga pulvinata. The 

 present specimen is larger than any hitherto recorded, 

 measuring 115 mm. h.d. Its colour is also different, the 

 abactinal surface being brownish-ohve and the primary spines 

 pink ; orally, test and spines are whitish, the primaries with 

 a green tinge ; the abactinal blue spots are conspicuous and 

 are distributed as described by Mortensen. 



Loc— Twenty miles north-east of Double Island Point, 

 Queensland, 29-30 fathoms. 



Family ECHINOTHURID^. 



Genus Ar^osoma, Mortensen. 



Ar.^osoma thetidis {H. L. Clark). 



Asthenosoma thetidis, H. L. Clark, Bull. Mus. Comp. Zool. 

 Harvard, lii., 1909, p. 134. 



Arceosoma thetidis, A. Agassiz and H. L. Clark, Mem. Mus. 

 Comp. Zool. Harvard, xxxiv., 1909, p. 176. 



These specimens are 115-180 mm. h.d. and have the general 

 appearance of those collected by the " Thetis." It is too 

 bad that there is no knowledge of where most of these speci- 

 mens were taken, for the range seems to be quite restricted. 

 x\pparently it is the only echinothurid in the shallower coastal 

 waters of Australia. 



Log. — South of Gabo Island, Victoria, about 200 fathoms. 

 Nine specimens. 



Also eight specimens from an unknown locahty. 



Family ARBACIIDiE. 

 Genus Coelopleurus, L. Agassiz. 



COELOPLEURUS AUSTRALIS,! Sp. nOV. 



(Plate xliii., fig. 1.) 



Test 40 mm. h.d. and 24 mm. v.d. ; height therefore is .60 

 h.d. Coronal plates 11 or 12 in a column, but only the 



1. Australis= southern, in reference to its being the most southern 

 representative of the genus. 



