SEA LILIES, STARFISHES, ETC. — CLARK. 119 



widest specimen is .91 as wide as long ; the narrowest is .82. 

 In the highest specimen the vertical diameter is .41 of the 

 length ; in the flattest it is .29. The colour is some shade of 

 brown, usually with a greenish tinge. Several of the speci- 

 mens are shghtly asymmetrical in one way or another. Ten 

 specimens. 



Locs. — Six miles east of Cape Hawke, New South Wales, 

 47-50 fathoms. 



Shoalhaven Bight, New South Wales, 15-45 fathoms. 



East of Babel Island, Bass Strait, 65-70 fathoms. 



Clypeaster telurus, H. L. Clark. 



Clypeaster telurus, H. L. Clark, Rec. West Austr. Mus., i., 

 1914, p. 166. 



The unique holotype of this species was taken on the 

 coast of Western Austraha almost directly across the Aus- 

 tralian continent from Fraser Island, Queensland, but a 

 prolonged critical study of these Clypeasters fails to show 

 any character or combination which will distinguish them 

 from it, except that they do not have the posterior inter- 

 radial margin depressed appreciably. They are all larger 

 than the holotype, the largest measuring 145 x 135 x 20 mm. ; 

 as a species character, it seems to be true that the breadth 

 exceeds .90 of the length, while the height is less than .15. 

 There are about 400 primary tubercles to a square centimeter 

 of the aboral surface. The unpaired anterior petal is 39 mm. 

 long and has 52 pore-jjairs. The periproct is 8-12 mm. from 

 the posterior margin, and this considerable distance, taken in 

 connection with the thin, almost fragile, test, and the form of 

 the petals, makes it easy to distinguish this species from 

 C. humilis, which is its nearest relative. Tridentate pedicel- 

 larise, with valves .25-. 75 mm. long, are common on the oral 

 surface. The colour of these specimens is more or less 

 purplish-brown. 



Loc. — Off Fraser Island, Queensland. Four specimens. 



Clypeaster virescens, Doderlein. 



Clypeaster virescens, Doderlein,, Arch. f. Naturg., li.i., 

 1885, p. 102. 



This individual is 105 mm. long, 95 mm. wide and 19 mm. 

 high. The colour is yellow-brown with a distinct greenish 

 tinge orally. Although none of the Japanese specimens at 



