NOTES AND EXHIBITS. 657 



Mr. Hedley exhibited specimens of polyzoa and foraminifera, 

 recently dredged in HI fathoms, 12 J miles to the east of Cape 

 Byron, by Mr. Gerald Halligan, F.G.S. The exhibit seemed to 

 show that a reef rock was in process of formation similar in 

 character to the polyzoal limestone at Mount Gambler, S.A. 



Mr. Gurney showed two specimens of the stridulating moth, 

 Hecatesia fenestrata, Boisd., recently captured by him at Narra- 

 been ; and he remarked that Mr. Waterhouse had also noticed it 

 at Waverley. 



Mr. Fletcher took the opportunity to point out that at the 

 Society's Meeting on March 31st, 1897, he exhibited on behalf 

 of Mr. C. T. Musson, specimens of a stridulating Agarista, 

 A. macleayi, Koch (Proceedings, 1897, p. 44) ; and that recently, 

 and quite accidentally, he had met with a much earlier record of 

 the stridulating habit of this species, in Trans. Ent. Soc. N. S. 

 Wales, i. Proc, p. xxvi. (Nov. 1863). 



