NATURAL HISTORY, TORONTO REGION 
Cladocera. 
Herrick, C. L. Cladocera of Minnesota. Second 
Report of State Zoologist, Pt. II. Geol. & 
Nat. Hist. Surv. Minn., Zool. Series II. 
1895. 
Ostracoda. 
Turner, C. H. Fresh-water Ostracoda of the United 
States. Second Report of State Zoologist, 
Pt. II, Geol. & Nat. Hist. Surv. Minn., Zool. 
Series IT. 1895. 
Copepoda (free-living). 
Herrick, C. L. Copepoda of Minnesota. Second 
Report of State Zoologist, Pt. II. Geol. & 
Nat. Hist. Surv. Minn., Zool. Series IT. 
1895. 
Copepoda (parasitic). 
Bassett-Smith, P. W. A Systematic Description of 
Parasitic Copepoda, ete. Proce. Zool. Soe. 
London for 1899, p. 438. 
Annelida. 
Beddard, F. E. A Monograph of the Order Oligo- 
chaeta. Oxford, 1895. 
Moore, J. P. Hirudinea and Oligochaeta collected 
in the Great Lakes Region. Bull. U. 8. Bur. 
Fisheries, Vol. XXV, p. 155. 1906. 
Walton, L. B. Naididae of Cedar Point, Ohio. 
Amer. Nat., Vol. XL, p. 688. 1906. 
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