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. 



CEUSTACEA. 



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.* 



" robustus Girard Don River and 

 Indian Creek (Faxon). 



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