26°. ° T., H. JOHNSTON AND M. J. BANCROFT. 
DEAG ERRRR SHER BREE pm tt | 
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Length of spore—A. Henneguya gracilis; B. H. australis. 
HENNEGUYA Sp. 
A number of spores of a Henneguya were detected in 
scrapings of the gill of one out of four specimens of the 
slender bony bream, Nematalosa elongata Macleay. The 
glide having become mislaid, we are unable to give further 
particulars. 
MICROSPORIDIA. 
PLEISTOPHORA SCIANA 0. Sp. 
Figs. 7, 13. 
The ovary of a single specimen of Scicena australis 
Gunther,* the so-called perch of the Brisbane River, 
examined by us, was found to contain small white cysts. 
Hach cyst was seen to be filled with myriads of tiny spores. 
When sections of the infected portion were examined, it 
was obvious that the parasite had originally taken up its 
‘ Syn. S. canina de Vis. See Ogilby Mem. Qld. Mus. 6, 1918, p. 75. 
