458 AUSTIN HOBART CLARK, 



thickly covered with uniform small rounded whitish spots; the outer half 

 of the arms becomes rather suddenly lighter, and is unspotted. 



A second specimen from the same locality has thirty-three arms about 

 60 mm long; five of the III Br series are 2, all the other division series 

 being 4 (3 -f- ^) '> the ceutrodorsal is almost obsolete, bearing seven cirri, 

 all but one of which are iuterradial in position. The colour is a uniform 

 purplish black. 



The third specimen is similar to the preceding with thirty-one arms 

 about 45 mm long; the ceutrodorsal bears five cirri, in one pair and one 

 trio, all on the same semicircumference of the periphery. The colour is a 

 uniform purplish black, but there is a large yellow spot in the center of 

 the centrodorsal. The cirri are 6 mm long with 13 segments. 



The fourth specimen is smaller, and of a uniform purplish black colour 

 like the two preceding. 



Fam. Zygometridae A. H. Clark. 



Genus Zygometra A. H. Clark. 

 Zygometra microdiscus (Bell). 



Literature: See "The recent Crinoicls of Australia''. 



Locality: Stat. 16, Sharks Bay, northwest of Heirissou 

 Prong; 11 12 1 /* meters; bottom rocky, with coral: 13. IX. (2 specimens). 



Further Distribution. Lewis Island, D a m p i e r Archipelago: 

 Holothuria Bank; N i c o 1 Bay, northwestern Australia; Mer- 

 maid; Torres Strait; Cape York; Port Molle, Queensland. 



Depth. Littoral, and down to about 22 meters. 



Notes. One of the specimens is the finest example I have ever seen 

 of this species; it has about one hundred arms 130 mm long; the IIIBr 

 series are mostly 2, but all the other series are 4 (3 + 4); the cirri are 

 about XXXV, 47 54, 50 to 55 mm long; the spines begin to develop on 

 from the seventeenth to the twentieth segment. The colour is deep 

 purple. 



The other specimen is rather small, with about sixty-five arms about 

 85 mm long; the IVBr series are usually developed internally in regard 

 to the IIIBr series; the cirri are about 25 mm to 30mm long with from 

 37 to 45 segments. 



Zygometra elegans (Bell). 



Literature: See "The recent Crinoids of Australia". 



Locality: V Vicinity of Perth (1 specimen). 



