528 
10. 
i. 
ee 
13. 
14, 
Ro: 
16. 
Wife 
T. H. JOHNSTON AND M. J. BANCROFT. 
Piuate XLIV. 
. Portion of transverse section ovary of Sciwna with spores 
of Pleistophora science. x 1250. 
. Transverse section, gill filament of Vherapon hillii; with 
cyst of Henneguya gracilis. x 1250. 
. Edge of plasmodium of Myxidiuwm therapon. x 1250. 
PuaTeE XLV. 
Portion of gill filament of Therapon hillii (stained with 
hematoxylin) showing six pyriform cysts of 
Henneguya gracilis. x 34. 
Portion of gill filament of Plectroplites ambiguus (un- 
stained) showing cyst of Henneguya australis. x 35. 
Portion of plasmodium of Myxidium therapon. x75. 
Puate XLVI. 
Transverse section of ovary of Sciena with cyst of Pleis- 
tophora. x72. 
Transverse section of gill filament Plectroplites ambiguus, 
showing portion of cyst of Henneguya australis. 
x 312. 
Transverse section of kidney of Plectroplites ambiguus 
with cyst of Myobolus plectroplites. x 434. 
Puate XLVII. 
Transverse section of two gill filaments of Plectroplites 
ambiguus, one showing section of cyst of Henneguya 
australis. x 90. No radiating arrangement of spores. 
Transverse section of portion of gill arch of P. ambiguus 
at base of several filaments—showing two cysts of 
Myxosoma ogilbyi. x74. 
