24 " ENDEAVOUR " SCIENTIFIC RESULTS, 



Ptilometra mulleri, a. H. Clark. 



Ptilometra mulleri, A. H. Clark, Proc. Biol. Soc. Washington, 

 xxii., 1909, p. 41. 



This large series of Ptilometras (one hundred and forty- 

 five specimens) shows no tendency to intergrade with the 

 preceding species and fully justifies Mr. Clark's separation 

 of the two forma The occurrence of this species oft' 

 the mouth of the Clarence River, New South Wales, 

 extends its known range northward about 150 miles. 

 It is interesting to note that no Ptilometras were taken by the 

 " Endeavour " in Tasmanian or Victorian waters, though the 

 genus has been reported from Port PhiUip. None of the 

 material in the present collection throws any Ught on the 

 disagreement between Mr. A. H. Clark and myself with 

 reference to the young of Ptilometra. We are each equally 

 sure of being right, and no doubt will continue to feel so until 

 the life history of one of the members of the genus is fully 

 known. It seems to me possible that Bell's Antedon wilsoni, 

 which I have never seen, and my Himerometra 'pcedofhora are 

 the same species, but I am perfectly sure the latter is not a 

 Ptilometra and has no near relationship to that genus. It is- 

 to be hoped that some Australian zoologist will before long 

 investigate carefully the hfe history of the comatulids, so 

 accessible from Sydiiey or Melbourne. 



Lacs. — Eleven miles east-south-east of Clarence River 

 mouth, New South Wales, 35-36 fathoms. 



Eight miles east of Sandon Bluff's, New South Wales, 35-40 

 fathoms. 



Six miles east of Cape Hawke, New South Wales, 47-50 

 fathoms. 



Between Port Stephens and Newcastle, New South Wales,. 

 22-60 fathoms. 



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

 South-eastern coast of Australia. 



Genus Cosmiometra, A. H. Clark. 



COSMIOMETRA DASYBRACHIA,! Sp. TIOV. 



(Plate IV., fig. 2.) 



Arms 20, about 90 mm. long. Centrodorsal about 4 mm. 

 high and scarcely 5 mm. in diameter at base, markedly 



1. ^a<Ti)9=rough, downy+y3/j«xtwv = the arm, in reference to the- 

 fine roughness of the arms, distally. 



