362 ADDENDA. 



** Body elongate, subfnsiform, le'ss compressed ; dorsal and ven- 

 tral outlines dissimilar ; scales smaller, loose and uniform, 

 posteriorly more convex. (Argyrosomus.) 



2. A. nigripinnis, Gill. Black Fin. Blue Fin. (See 

 text.) 



3. A. artedi, (Le Sueur) Hoy. Common Lake Hek- 

 KiNG. (See text.) 



4. A. hoyi, Gill. Cisco of Lake Michigan. (See text.) 



2. COREGONUS, Linnaeus. White Fishes. 



* Body elongate ; tongue with evident teeth. 



1. C. labradoricus, Richardson. Lake Whiting. 

 Black Cisco. Body elongate, compressed, the depth 

 4^ in length; head long and slender, somewhat pointed, 

 4f in length; mouth moderate, reaching front of puj^il; 

 dorsal high in front, 2, 11; A. 2, 11; lat. 1, 80 — 84; about 

 eight rows above and seven below; fins all blackish; 

 color rather dark bluish, sides silvery. Lakes from 

 Northern N. Y. to New Hampshire and Labrador. (C. 

 neoliantoniensis^ Prescott.) 



** Body stout, becoming deep and elevated with age ; no teeth. 



2. C. clupeiformis, (Mitchill) Milner. Common White 

 Fish. (See text, C. albus.) (C. otsego^ Clinton.) 



3. PROSOPIUM, Milner. Round White Fish. 



1. P. quadrilaterale, (Rich.) Milner. Menomonee 

 White Fish. (See text.) The Shad- waiter (C. novan- 

 glicB^ Prescott) of the lakes of N. N. Y. and N. H., 

 is apparently identical with this species. 



2. P. coues/i, Milner. Chief Mountain White Fish. 



(See text.). (Foi* further Addenda, see page 403.) 



