Hedrick, R.P., Groff, J.M. & Baxa, D.V. 1991. Experimental infections with Nucleospora salmonis n.g., n.sp.: an intranuclear microsporidium from chinook salmon (Oncorhynchus tshawytscha). Am. Fish. Soc. Newsl. 19, [ante 1 May] 1991: 5.