INVERTEBRATES 
Ascaris lumbricoides L.—in Man. 
«“ suum Goeze—in Pig. 
~ equorum Goeze—in Horse. 
Filaria triaeuncha Wright—in Bittern (Wright). 
Ancyracanthus cystidicola (Schn.)—in Salmon 
(Wright). 
Ancyracanthus serratus Wright—in Whitefish 
(Wright). 
Kchinorhyncus sp.—in Whitefish (Morris). 
Gigantorhyneus gigas (Goeze)—in Pig. 
(<9 
From Montgomery’s account of the hair-worms 
or hair-eels (Proc. Ac. Phil., vol. 59) there are per- 
haps four species that may be expected to occur here. 
PLaTYHELMINTHES. 
Turbellaria. 
The free-living flat-worms or Planarians are 
abundant in our waters and may be found on the 
under surfaces of stones, etc. None seem to have 
been reported from Toronto. 
Trematoda. 
These animals are when adult internal or exter- 
nal parasites of vertebrates (for the most part). 
Sphyranura osleri Wright—in Mud-puppy (Wright). 
Polystoma oblongum Wright-— in Mud-turtle 
(Wright). 
Octobothrium sagittatum (Leuck.) — in Sucker 
(Wright). 
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