250 NEW-YORK FAUNA. 
FAMILY CLUPIDA. 
Dorsal single. No adipose fin. Upper jaw formed as in the preceding family ; in the 
centre by intermaaillaries, and on the sides by the labials. Body very scaly. 
GENUS CLUPEA. Cuvier. 
Body compressed. Scales large, thin, and deciduous. Tongue and vomer furnished with 
teeth. Under jaw longest. 
THE COMMON AMERICAN HERRING. 
CLUPEA ELONGATA, 
The Herring of Commerce, C. harengus. Mitcuity, Am. Month. Mag. Vol. 2, p. 323. 
Clupea elongata. Lesveur, Journ, Acad. Nat. Sciences, Vol. 1, p. 234. 
Clupea elongata, The Common Herring. Storer, Report on the Ichthyology of Massachusetts, p. 111. 
Characteristics. Back and head deep blue, tinged with yellow. ‘Tail with caudal pouches. 
Length 12-13 inches. 
Description. Body lengthened, fusiform, compressed. Depth at the dorsal fin to the total 
length, as one to fourteen. Back slightly arched. Scales large, silvery and deciduous. Ab- 
domen sharp, indistinctly serrated; about thirty spines in front of the ventrals, and fifteen 
behind them. Two scaly appendages on each side of the caudal fin. Head destitute of scales, 
and about one-seventh of the total length; a depression above, with numerous mucous pores. 
Eyes large, with a nictitating membrane, and two diameters apart. Mouth large. Jaws, 
palate and tongue furnished with tgeth. Dorsal subquadrangular, longer than high. Pecto- 
rals short, rounded. Ventrals under the middle of the dorsal fin. Anal subequal, narrow, 
highest in front. Caudal small, forked. 
Color. Back and head deep blue, tinged with yellow. Opercles yellowish, tinged with 
violet. Irides silvery ; pupils black. 
This species,* which rarely descends to the coast of New-York, is occasionally taken in 
considerable numbers in the waters south of Cape Cod. Of late, their numbers have much 
diminished, which is attributed by the fishermen, according to Dr. Storer, to torching them 
’ * As this species has been confounded with two species on the coast of Europe, we subjoin their diagnostic characters: 
1. C. harengus, the Common Herring. Back dark and glossy blue. Belly distinctly serrated in the young, obsolete with 
age. Under jaw tipped with black. Base of the ventrals under the sixth dorsal ray. First ray of the dorsal fin 
exactly half way between the tip of the snout and the base of the middle caudal ray; if held up by the anterior 
dorsal rays, the head dips considerably. Vertebre 56. Anal with 15 rays. ; 
2. C. pilchardus, the Pilchard. Back bluish green, Belly smooth. Dorsal fin with its last ray equidistant between the 
tip of the snout and half way along the caudal ray; if held up by anterior dorsal rays, the body preserves its equili- 
brium. Vertebre 55, Anal with 18 rays. 
