372 PROCEEDINGS OP THE ACADEMY OF [1885 



The specimens examined by us are from the Potomac and Dela- 

 ware Rivers. 



t. Esox lucius. 



Esox lucius* Linnaeus, Systema Natures, Ed. x, 1758, 314 (European 

 specimens). 



American References. 



? Esox lucius Richardson. "Fauna Bor. Amer. Fishes, iii, 1836, 124" 

 (Northern regions); De Kay, N. Y. Fauna. Fish., 1842, 226 

 (copied). 



Esox lucius Cope, Proc. Acad. Nat. Sci. Phila., 18C5, 79 ; Cope, Trans. 

 Amer. Phil. Soc. Phila., 1866, 408 (Great Lakes ; Lake Whittlesey, 

 Minnesota); Giinther, Cat. Fish. Brit, Mus., vi, 1866, 227 (Albany 

 River ; Lake ^Vhittlessey, Minnesota ; Arctic, N. A.); Jordan & Cope- 

 land, Bull. Buffalo Soc. Nat. Sci., 1876, 143 (Check List); Jordan, 

 ( >hio Stan- Fish. Comm., 1876, 186, fig. 16, pi. 11 ; Jordan, Bull. U. 

 S., Geol. Sur. Terr., iv, 1876, 797 (Turtle Mountain ; St. Mary's 

 River, Rocky Mountains); Jordan, Pioc. Acad. Nat. Sci. Phila., 

 1877, 44 (St. Joseph's River, Indiana); Jordan Annals, N. Y. Acad. 

 Sci., vol. i, No. 4, 1877, 104, (Lake Ontario ; Lake Erie; Lake Michi- 

 gan ; Fox River. Illinois ; Mississippi River); Jordan, Bull. U. S. Nat. 

 Mus.. x, 1877, 5.5 ; Jordan, Bull. U. S. Geol. Sur. Terr., 1878, 432. 



Esox lucius Jordan, Bull. 111. Mus. Nat. Hist., ii, 1878, 53 (Rock River, 

 111.); Jordan, Man. Vert. Ed. 3, 1880, 266; Bean, Proc. U. S. Nat. 

 Mus., 1880, 104 (Sandusky, Ohio ; South Hadley Falls, Massachu- 

 setts); Goode, Bull. U. S. Nat, Mus., 21, 1880, 32 (Sandusky, Ohio); 

 Bean, Proc. U. S. Nat. Mus., 1881, 255, 268, 271 (Alaska ; Youkon 

 River); Jordan, Zoology of Ohio, iv, 1882, 915 ; Jordan & Gilbert, Syn. 

 Fish. N. A., 1882, 353; Forbes, 111. State Fish Coram., 1884, 71 

 Illinois) ; Jordan. Cat. Fish. N. A., 51, 1885. 



'.' Knox tittatus Rafinesque, American Monthly Mag., vol. iii, 1818, 447; 

 Kafinesque, Ichth. Oh., 1820, 70 (Mythical). 



Esox Estor Le Sueur, Jour. Acad. Nat. Sci. Phila., 1818, 413 (Lake 

 Eric); DeKay, N. Y. Fauna Fish. 1842, 222; Cuvier & Valenciennes, 

 Hist, Nat. Poiss., xviii, 1S46, 324, pi. 542 (Lake Erie) ; Giinther, Cat. 

 I'ish. Brit. Mus., 1866, 228 (copied). 



Esox hirius var. istor Jordan, Man. Vert., 1876, 255 ; (Nelson, Bull. 111. 

 Mus. Nat. Hist., i, 1876, 43 (Northern Illinois); Jordan A Copeland, 

 Hull. Buffalo Soc. Nat. Sci., 1876, 43 , Cluck List). 



Esox reticulaUis Kirtland, "Zoology of Ohio, 1820, 194;" Kirtland, 

 "Bost. Jour. Nat. Hist., 1843, 33, pi. 10, fig. 2'' (Lake Erie); (not of 

 Le Sueur). 



ft Esox salmoneus Rafines<|iir. Irhthiol. Ohiensis, 1820, 70 (Mythical). 



* The European synonymy of this species is very extensive, and we have 

 not attempted to collect it. 



