THE RECENT CRINOIDS OP AUSTRALIA — CLARK. 783 



found at King George Sound. Suspecting that dorcadis might 

 eventually prove to be true macronema, I suggest that, in this 

 case, the species occurring at Sydney may bear the name 

 mulleri. 



My Ptilometra dorcadis was a well marked form, and in 

 examining the collection of the Australian Museum I at once 

 recognised it in two beautiful specimens from Kangaroo Island, 

 near Adelaide. As it occurs both at Dirk Hartog Island and at 

 Kangaroo Island it is safe to say that it also inhabits the inter- 

 vening territory, including King George Sound, and, therefore, 

 is a synonym of Mliller's Comatula macroneina. 



As a necessary consequence the name macroneni'x must be 

 restricted to the species occurring from Dirk Hartog Island 

 southward and eastward to Kangaroo Island, while the species 

 occurring at Port Phillip and thence eastward and northward 

 must drop the name macronema and adopt that of vndleri. 



While at Paris I examined the four specimens upon which Miiller 

 'based his Comatula macronema. These are of about the same 

 size as the type of my Ptilometra dorcadis from Dirk Hartog 

 Island, and agree with it in all respects. The more proximal 

 segments of the larger cirri (which are disproportionately large) 

 are slightly longer than broad instead of twice as broad as long 

 -as in the species from the south-eastern coast (milUeri), 



PTILOMETRA MULLERI, A. H. Clark. 



Kallispongia archeri, var., 1877, Wright, Proc. Roy. Irish Acad., 

 [2], vol. 2, p. 754, pi. xL, fig. 3 {Australia). 



Antedon mauonema, 1885, Bell, Proc. Linn. Soc. N. S. Wales, 

 vol. 9 (1884), p. 497 {Port Steijhens). 



? Antedon tvilsoni, 1888, Bell, Ann. and Mag. Nat. Hist., [6], vol, 

 2, pp. 402, 403 (Port Phillip).— 1890, P. H. Carpenter, 

 Proc. Roy. Soc. Vict. (N.S.), vol. 2, p. 135 {Port Phillip). 



Antedon macronema, 1888, Carpenter, "Challenger" Reports, 

 Zool., vol. 26, p. 212 {Port Stephens; Port Jackson, 30-35 

 /ms).— 1889, Whiteleggp, Journ. Roy. Soc, N. S. Wales, 

 vol, 23, p. 198 {near Sow and Pigs PeeJ, Port Jackson). — 

 1 1890, P. H. Carpenter, Proc. Roy. Soc. Vict. [N.S.], vol. 2, 

 p. 135 {Port Phillip). — 1891, Hartlaub, Nova Acta Acad., 

 German., vol. 58, No. 1, p. 75 {Sydney). 



Ptilometra mulleri, 1909, A, H. Clark, Proc. Biol. Soc. Wash- 

 ington, vol. 22, p. 41 (Sydney). 



Ptilometra macronema, 1909, H. L. Clark, Mem. Austr. Mus., iv., 

 p. 527 {off Broken Head, 28 fms.; off Cape Three Points, 

 23-24 /?ns.; off Manning River, 22 /ms.). 



