24 ‘‘ ENDEAVOUR ” SCIENTIFIC RESULTS. 
PTILOMETRA MULLERI, A. H. Clark. 
Ptilometra miilleri, 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 forme The occurrence of this species off 
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 Phillip. None of the 
material in the present collection throws any light 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 pedophora 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 life history of the comatulids, so 
accessible from Sydney or Melbourne. 
Locs.—Eleven miles east-south-east of Clarence River 
mouth, New South Wales, 35-36 fathoms. 
Eight miles east of Sandon Bluffs, 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. nov. 
(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. éagus=rough, downy+fpayiwy=the arm, in reference to the 
fine roughness of the arms, distally. 
