8 
The following table shows proportions as given by Jordan and Evermann 
and those obtained for the ciscoes in Lake Erie with the exception of L. harengus 
and L. ontariensis. 
Jordan and Evermann Lake Erie 
Head in | Depthin |Depth C.P.| Head in | Depthin | DepthC.P. 
Species length length | in length length length in length 
aie ee ae ae ee ee a ieee oa 
alee ie See erste } 4.66 42-45 ne 2.9 | 46 . 43 : 2.95 
Lape. as | 3749 | 266 \ 25. | 3a 2 oar 
aN ere 4.4 3 5-4 0 2.02.5. 4.26 3.70 5 2.86 
ae i =< See 38 4.4 m 3 33.5 9 2 | 4.41 3.42 w oar 
Epes ce} ho. | Poe S35 Pals |e oie ee 
Fig. 1.—Drawings of scales of ciscoes. 
A, from specimen No. 606, L. artedi, showing 5 winter bands, the fish therefore being in its 
sixth summer. 
therefore being in its fourth summer. 
1From Georgian Bay. 
2From Lake Ontario. 
80 
B, from specimen No. 235, L. eriensis, showing three winter bands, the fish 
