CHAPTER XX. 
INVERTEBRATES OTHER THAN 
INSECTS AND MOLLUSKS. 
By 
A. G. HUNTSMAN, B.A., M.B. 
In the following account I have tried to bring 
together the records for the district around Toronto. 
They are in most groups utterly inadequate to give 
a proper idea of the forms that are to be found here. 
I have included a few forms (indicated by an 
asterisk) which from their known distribution may 
be expected to occur here. When not otherwise indi- 
cated the identifications are my own. It is hoped 
that this may be of use as a basis for future records. 
CRUSTACEA. 
Decapoda. 
The well-known crayfishes occur abundantly and 
form an efficient corps of scavengers in all our 
streams and lakes. They form no inconsiderable 
element in the food of many of the fishes, frogs and 
birds. 
Cambarus bartonii (Fabr.)—Niagara.* 
as “  robustus Girard—Don River and 
Indian Creek (Faxon). 
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