three drainage systems are summarized. 
Pearse—The Parasites of Lake Fishes, 
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Depths, meters. 
Surface area, square kilometers. 
Number examined... 
Number infected. 
Diplostomum cuticola . 
Bunodera ludovercae . 
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6 
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Ichthyonema cysts, visceral. 
Proteocevhalids. intestinal. 
Proteocephalid cysts, visceral. 
Bothriocevhalus cusmdatus . 
Glochidia . 
I'tsacoiana . 
Unknown cysts, visceral. 
Total. 
Total without diplostomum _ 
