SEA LILIES, STARFISHES, ETC. CLARK. 49 



the granulation is finer than in other Stellasters and the 

 marginal spines are gone ; the abactinal spines too are much 

 reduced in number and even the actinal, adambulacral spine 

 is somewhat smaller than in other species. If Ogmaster is not 

 a close relative of Stellaster, it is hard to see what its correct 

 position is. 



Loc. — Between Geraldton and Cape Naturahste, Western 

 AustraUa. Two specimens. 



Grenus Anthenea, Gray. 

 Anthenea acuta. Perrier. 



Goniodiscus acutus, Perrier, Ann. Sci. Nat., Zool., (5), xii., 

 1869, p. 280. 



Anthenea acuta, Perrier, Arch, de Zool. exp. et gen., v., 1876, 

 p. 91. 



This is an excellent series, with R ranging from 40 to 120 

 mm., and the vertical diameter of the disk from 12 to 50 mm. 

 The growth changes are well shown, as well as considerable 

 individual diversity. Twenty -fo in: specimens. 



Logs. — Off Fraser Island, Queensland, 32-33 fathoms. 



Off the Queensland coast. 



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

 Queensland, 30 fathoms. 



Thirteen miles north by west of Double Island Point, 

 Queensland, 25-26 fathoms. 



Twenty-five miles south-east of Double Island Point, 

 Queensland, 33 fathoms. 



Eleven miles south by east of Ballina, New South Wales, 

 27-29 fathoms. 



Eleven miles east-south-east of Clarence River mouth. 

 New South Wales, 35-40 fathoms. 



Eight miles east of Sandon Bluffs, New South Wales, 40 

 fathoms. 



Family OREASTERID^. 



Genus Oreaster, Muller and Troschel. 



Oreaster australis, Lutken. 



Oreaster australis, Liitken, Vid. Med., 1871, pp. 252, 263. 



These are all dry adults, illustrating not only the great 

 individual diversity in abactinal spines, but also the diversity 

 caused by differences in collapse and contraction when drying. 



