FAMILY SCOMBRIDA — CORYPHANA. 133 
of the total length. Height of the head at the nape to its length, as 9 to 7. The upper part 
of the head strongly compressed, trenchant, and becoming wider at the extremity of the 
upper jaw. ‘The facial line ascends in front almost vertically, being slightly concave above 
the jaw for the distance of about two inches. Scales deeply imbedded on the body and pre- 
opercle, and extend high up on the caudal fin: they have the same form and variety of con- 
figuration as in the Lampugus hereafter described, and differ from them only in being much 
larger ; those on the base of the tail are, however, much larger in this species. The lateral 
line commences as usual, first slightly descending, almost immediately ascending, and forming 
a small curve above the pectorals, and then proceeds in a slightly wavering line through the 
centre of the body to the tail. Nostrils double, contiguous ; the posterior largest, and both 
above the superior margin of the orbit ; they are rather nearer to the jaw, than to a point ver 
tical to the centre of the eye. Eyes large; diameter of the orbit, 1+2; its lower margin 
distant 3°5 from the gill rays beneath, and 4°5 from the crest of the nape. Lower jaw 
slightly advanced, and both furnished with small conic recurved teeth arranged in cards ; on 
the anterior part of the jaw, the external series largest ; similar teeth on the vomer, palatines 
and tongue. 
The dorsal fin commences directly over the eye ; the first four rays are short; the seventh 
and eighth longest, and rather more than half the depth of the body at the pectorals, or to be 
more exact, the highest ray is 5*5 long ; from this ray, it diminishes almost imperceptibly to 
the tail. ‘The whole length of this fin is 28°0, and it comprises sixty-three rays. The anal 
fin commences under the fortieth dorsal ray ; the two first rays are short, the third and fourth 
longest: this fin terminates a short distance beyond the end of the dorsal, and contains 
twenty-nine rays, the highest of which are two and a half inches long. Pectoral fins small, 
acute, falciform, with twenty-one rays, the longest of which is five and a half inches long. 
Ventral fins similar to the last in shape and size, with a connecting membrane at the base, 
attached to the whole length of the last ray: this fin is situated behind the pectorals, with 
very much flattened and robust rays. Caudal fin deeply forked, and composed of nineteen 
complete rays, and six or seven accessories on each side ; its longest rays exceed nine inches, 
and the margin terminates in filaments like baleen or whalebone. 
Color. Ihave little to say in regard to the color of this species. It has been described to 
me as similar to the appearance exhibited in the figure. 
Length, 45°0. Depth at the pectorals, 9°0. 
Minrays; ss 63's 21s) Vente ACn293 (Cy, 19.83 
This beautiful species was captured off the harbor of New-York, and presented to the 
Lyceum of Natural History in 182-. It was treated by Dr. Mitchill as the C. hippuris, noticed 
in his memoir on the fishes of New-York. It is obviously distinct from the hippuris, but 
bears a general resemblance to the S. sueri of Cuvier and Valenciennes. The slight indica- 
tions given by the authors of that species are, however, insufficient to establish their identity. 
The proportional height and length of the dorsal leads me to suppose that they are specifically 
