EDIT(3RIAL NOTE. 



The accompanying Paper by Mr. Whitelegge was published on the 

 19th April, 1890, as a Report to the Commissioners of Fisheries 

 of New South Wales, and is again issued as Part II. of the 

 "Records of the Australian Museum." The Trustees having 

 given their permission, at the request of the President of the 

 Commissioners, Mr. Whitelegge was specially deputed to investi- 

 gate the so-called Oyster disease, and spent some time in the 

 neighbourhood of Newcastle prosecuting his researches, which 

 were continued and completed at the Australian Museum. 



R. ETHERIDGE, Junr., 



Acting Curator. 



