44 NOTES. 



in the cold weather, but is seldom taken in the dredge. Its 

 range North extends to Port Stephens, and MR. TENTSOX- WOODS 

 says Moreton Bay; to the South, about Botany, Port Hacking, 

 &c., it is abundant. I have not yet seen specimens from the 

 South Coast or Tasmania, but it is more probable that this is the 

 form found there, and not P. Jubia. 



PHYLLACANTHFS AUSTBALIS, Sj>. Nbv. 



Of this hitherto unique and beautiful species I had only seen 

 one specimen until quite recently, when I was fortunate enough 

 to obtain from the trawl a second specimen, both were taken in 

 about 6 fathoms, one near South Ecef, the other under Shark 

 Point, off a rocky bottom. At first sight it appears to resemble 

 P. baculosa, but as will be readily seen from the Photographs, 

 pi. i., the spines are flatter, fewer in number and stouter, 

 the serations larger and the sculpture different, besides the 

 large flattened primary spines are fluted and expanded at 

 the tips. 



GONIOCIDAEIS TUBAEIA. 



This species is far from common in Port Jackson, a few have 

 been swept from the rocky bottom near South Eeef by the 

 tangles of the dredge in 5 to 10 fathoms. 



GONIOCIDAEIS GEBANIOIDES. 



I have never met with this species m Port Jackson, but on 

 the South Coast it is not rare ; the Museum specimens were 

 obtained in Port Phillip. 



DIADEMA SETOSUM. 



The southern limit in Australia of this species seems to be 

 Wide Bay. Very young specimens, which eventually proved 

 to belong to Centrosteplianus rodgersii, were mistaken by 

 MR. TENISON-WOODS and myself for the young of this species, 

 and consequently D. setosum was reported from Port Jackson. 

 On all the reefs north of Wide Bay, and at Ugi, Solomon Islands, 

 our Collectors found this species plentiful. We have also 

 received fine specimens from MR. SMITHHURST, collected in 

 New Caledonia. 



CENTEOSTEPHANUS EOUGEESII. 



As mentioned before, the young of this species, with a test 

 about 0'5 inch in diameter and with long slender spines measuring 

 1'5 to 2 inches or more in length, were mistaken for the young 

 of Diadema setosum. In the immature stages they are even 



