128 



NORTHERN ZOOLOGY. 



light, a quadrantal segment of each scale reflects bright colours, which change their place 

 when the fish is moved, but there is no fixed pale angular mark on the tips of the scales, as in 

 E. lucius. The scales are about half the size of those of the latter, and of a different form, 

 their length and breadth being equal : and their middle lobe is the smallest ; whereas in 

 the Common Pike the middle lobe is rather the largest. The lateral line, measuring fifteen 

 inches and a half, contains 162 scales, and there are about 45 in a vertical row before the ven- 

 trals : a linear inch on the sides contains a little more than ten scales. The structure of the 

 gill-cover is nearly that of E. lucius, but the suboperculum is slightly broader and more 

 rounded posteriorly, giving a curve to the edge of the plate, which is almost straight in E. 

 lucius ; there is also a distinctive mark in two rows of scales which descend on the anterior 

 edge of the operculum in E. estor, until they reach the upper angular process of the suboper- 

 culum. The length of the head is contained four times and a half in the total length, includ- 

 ing the caudal. 



Fins— Br. 18; D. 21 ; P. 12; A. 21 ; C. 19f 



The five anterior rays of the dorsal are short and applied closely to the base of the sixth. 

 The four anterior rays of the anal are in like manner applied to the fifth. 



Dimensions 

 Of a dried specimen. 







] 



nches. 



Lines. 



engt 



i from tip of snout to extrem. of caudal 23 



3 



!> 



» 



central caudal rays 



22 



10 



X 



)> 



anus 



15 



6 



» 



j) 



beginning of dorsal 



14 



6i 



» 



•j 



tip of gill-cover 



5 



5 



)' 



» 



orbit 



2 



4 



)» 



of intermaxillaries 







m 



)> 



labials 



. 



2 



i 



)J 



lower jaw 



. 



3 



6 



>> 



ventrals 



. . . 



2 



4* 



Length of attachment of dorsal 

 „ central rays of ditto 



„ attachment of anal 



„ central rays of ditto 



„ lobes of caudal 



„ central rays of ditto 



Extent of scales beyond bases of caudal 

 Depth of caudal fork . . , 



Inches. Lines. 



5 

 7 

 

 7 

 

 8 

 11 



H 



M. Le Sueur describes three other species of Esox which inhabit the fresh 

 waters of the United States : viz., reiiculatus, niger, and phaleratus ; the first of 

 which is known by its scaly opercula, and its flanks marked with brownish lines, 

 which cross occasionally so as to form meshes. 



[55.] 1. Scomber-esox scutellatus. (Le Sueur.) Newfoundland 



Saury-Pike. 



Genus, Esox. Linn. Sub-ge/ius, Scomber-esox. Lacep., Cuv. (Sairis, Rafinesque.) 



The scombresoces of Lacepede have a general resemblance to the Belones, gar- 

 fish, or sea-needles, the same kind of long, slender bill, the upper border of which 



