274 FISHES. 



Coast, Nova Scotia to Virginia; also "land-locked" in 

 fresh water ponds in Maine, etc. {0. viridesce)is^ Mitch ) 



Var. spectrum, (Cope) .Jordan. Lajstd-Locked Smelt 

 Head 4^ in length; eye large, 3 in head; depth 8.j in 

 length. Wilton Pond, Maine. 



Var. abbot!/'/, (Cope) .Jordan. Abbott's Smelt. Head 

 4f in length; eye 4^ in head; depth 7 in length; colors 

 dark; lat. 1. 68. Cobessicoutic J^., Maine. 



3. THYMALLUS, Cuvier. GRAYLmas. 



1. T. tricolor. Cope. Michigan Grayling. Depth 

 4f in length; head about the same; purplish gray, silvery 

 below; dorsal with rosy markings and rows of green or 

 blue spots; D. 27; A. 13; lat. 1. 97. Waters of the 

 north pciic of the S. peninsula of Michigan; a beautiful 

 fish. 



4. COREGONUS, Linn^us. White Fishes. 



§ Lower jaw longest; Ciscoes. {Argyrosomus, Agassiz.) 

 * Body sub-fusiform; depth 4 to 5 in length. 



1. C. artedi, LeS. Lake Herring. Michigan 

 Herring. Head 4f in length (4^ to 5^); depth 4 (3f to 

 4^); eye 4 in head; maxillary 3^ to 3f; mandible 2^; 

 scales rather large and loose; bluish above, silvery on 

 sides and below; D. 12; A. 13; lat. 1. 76; length 12 

 to 18 inches. Great Lakes, etc., very abundant; a 

 shallow water species. [Goregonus albus^ clupeiforTiiis^ 

 lucidus^ harengas^ etc., of authors.) 



Var. sisco, .Jordan. Cisco of Lake Tippecanoe. 

 Head 41; depth 4^; eye 3| in head; maxillary 3^; man- 

 dible 2^; longest dorsal ray tln^ee times length of shortest; 

 steel blue above, sides silvery but without the clear luster 

 of 0. hogi, finely punctate; D. 11; A. 13; lat. 1. 84. 

 Lakes of Indiana and Wisconsin, living in deep water 



