1885.] NATURAL SCIENCES OF PHILADELPHIA. 373 



Esox deprandus (Le Sueur MSS.) Cuvier & Valenciennes, Hist. Nat. 

 Poiss., xviii, 1846, 330 (Wabash River at New Harmony, Indiana); 

 Cope, Proc. Acad. Nat. Sci. Phila., I860, 79; Cope, Trans. Amer. 

 Phil. Soc. Phila., 1860, 408 I copied); Gtinther, Cat. Fi«h. Brit. Mus., 

 1866, 229 (copied); Jordan, Proc. U. S. Nat. Mus., 1879, 225 (Identi- 

 fication of Le Sueur's type). 



? Esox lugubrosus (Le Sueur MSS.) Cuvier & Valenciennes, Hist. Nat. 

 Poiss., xviii, 1840, 338 (Crab Orchard, Ky.; no description). 



Esox lucioides " Agassiz & Girard, " Herbert Frank Forester's Fish 

 and Fishing, 1849 (Lake Superior). 



Esox boreus Agassiz, " Lake Superior, 1850, 317" (Lake Superior ; same 

 as E. lucioides); Cope, Proc. Acad. Nat. Sci. Phila., 1865, 79 ; Nelson, 

 Bull. 111. Mus. Nat. Hist, i, 1877, 43 (Northern Illinois). 



Habitat. — Streams and lakes of Europe ; Northern Asia, Alaska, 

 and Northeastern parts of North America ; South to New York 

 and Ohio River, and west to the Rocky Mountains. 



The specimens examined by us are from Venice, Lake Erie, 

 and Lake Michigan. 



We can see no difference whatever between American and 

 European examples of this species, when specimens of similar 

 size and condition are compared. The names Esox estor, depran- 

 dus, lucioides and boreus are therefore strictly synonymous with 

 E. lucius. 



5. Esox masquinongy. 



Esox masquinongy Mitchill, "Mirror, 1824, 297" (but the description 

 is said not to be there); Kirtland, Zoology of Ohio, 1838, 194 (Lake 

 Erie). 



Esox estor Richardson, "Fauna Bor. Amer., iii, 1836, 127" (Lake 

 Huron); Kirtland, Bost. Jour. Nat. Sci., 1842, 339 ; Agassiz, "Amer. 

 Jour. Sci. & Aits, xvi, 1853, 308" (not Esox estor, Le Sueur). 



Esox nobilior Thompson, "Proc Bost. Soc. Nat. Hist., iii, 1850, 163, 

 173, 305" (Lake Champlain); Cope, Proc. Acad. Nat. Sci. Phila., 

 1865, 79 ; Cope, Trans. Amer. Phil. Soc. Phila., I860, 410 (Cone- 

 aught Lake, Pa.; Alleghany Riven; Jordan & Copeland, Bull. Buf- 

 falo Soc. Nat.' Sci., 1876, 143 (Check list); Jordan, Annals N. Y. 

 Acad. Sci., vol. i, No. 4, 1877, 104 (Lake Michigan; Lake Huron; 

 Lake Erie); Jordan, Bull. U. S. Nat. Mus., 1877, 54 (Ecorse, Michi- 

 gan ; Lake Huron); Nelson, Bull. 111. Mus. Nat. Hist., i, 1877, 43 

 (Lake Michigan); Jordan, Man. Vert., Ed. ii, 1878, 266; Jordan, 

 Bull. 111. Mus. Nat. Hist., 1878, 53 (Lake Michigan); Goode, Bull. 

 U. S. Nat. Mus., xiv, 1879, 55 ; Goode, Bull. U. S. Nat. Mus., xxi, 

 1880, 32 (Sandusky, Ohio ; Jordan, Man. Vert., Ed. iii, 1883, 266; 

 Bean, Bull. U. S. Fish Coram., 1880, 104 (Sandusky, Ohio); Bean, 

 Proc. U. S. Nat. Mus. 1880, 104 (Sandusky, Ohio). 



