51. ESOCIDiE ESOX. 353 



hb. Brancbiostegals 14-lG. 



575. E. roticiilatiis Le Sneur. — Common Eastern Pickerel ; Green Fike. 



Body rather sleuder, deepest near the middle aud taperiu^ backward 

 to a slender caudal peduncle ; head long, the snout prolonged, so that 

 it is not much shorter than the rest of the head; eye small, about 3i in 

 snout, 8 in head; caudal well forked. Color green of varying shades, 

 sides with golden lustre, and marked with numerous dark lines aud 

 strealvS, which are mostly horizontal, and by their junction with one 

 another produce a reticulated appearance; a dark band below eye; fins 

 i^lain. Head 3 J ; depth G. B. 15 ; D. 14 ; A. 13 (counting developed 

 rays only as in other cases) ; Lat. 1. 125. L. 24 inches. Maine to Ala- 

 bama, everywhere east of the mountains, not found west of the Alle- 

 ghauies. 



(Le Sueur, Journ. Acad. Nat. Sci, Phila. i,440, 1818; Giinthcr, vi,2-29; Storer, Fish. 

 Mass. 311, and of all authors: Esox o^nis Holbrook, Ich. S. Car. 1860,198: Esox phalc- 

 ratus Say, Jouni. Acad. Nat. Sci. Pbila. i, 41G.) 



aa. Clieeks scaly; lower half of opercles bare; branchiostegals 14-16; species light- 

 spotted ou a darker grouud. {Eaox. ) 



« 



576. E. iBicitis Ij.—PiTce. 



Body moderately elongate, the back little elevated ; head rather long, 

 the eye exactly midway in its length. General color bluish, or greenish 

 gray, with many whitish spots which are usually smaller than the eye 

 and arranged somewhat in rows; dorsal, anal, and caudal fins with 

 roundish black spots; young with the white spots coalescing, forming 

 oblique cross bars; a white horizontal band bounding the naked part of 

 the operculum. Head 3§; depth 5; eye6J in head. B. 15, in the Amer- 

 ican var. estor (13 or 14 in European specimens); D. 17; A. 14; Lat. 1. 

 123. L. 2-4 feet. Fresh waters of the northern parts of Europe, Asia, 

 and IsTortli America; in the Eastern United States south to Northern 

 Ohio ; very abundant. 



{Ehox Incinsi L. Syst. Nat. ; GiliiHier, vi, 226, and of authors generally : Esox estor Le 

 Sueur, Journ. Aca4 Nat. Sci. Phila. i, 413, 1h18 : Esox estor Giinther, vi, 2^8 : Esoxdcpran- 

 dm Giinther, vi, 229 : Eaox boreus Agassiz, L. Superior, ?>17.) 



aaa. Lower half of cheeks as well as of opercles bare ; branchiostegals 17-19; black- 

 Bpotted on a lighter ground. {Mascalongun" Jordan.) 



577. E. nobiltor Thompson. — Muskalhmge. 



General form of E. lucius, the head a little larger proportionally ; 

 scaly part of cheeks about as wide as eye ; the scales on both cheeks 



*. Jordan, Eept. Ohio Fish. Com. , 1877, 92: type Esox nob iliot^ThomYtsoii. (Latin, 

 masca, mask; longtis, long.) 



Bull. Nat. Mus. No. IG 23 



