220 
BULLETIN OF THE BUREAU OF FISHERIES 
This fish reaches a length of about 12 inches. In the tropics, where the species is common, it has 
limited value as a food fish. 
Habitat .— Both coasts of tropical America, ranging northward on our coast to Woods Hole, 
Mass. 
Chesapeake localities. — (a) Previous records: None. (6) Specimens in collection: Lynnhaven 
Roads, Va., taken in pound nets, September 8, 1921, and May 25, 1922. 
88. Genus CHLOROSCOMBRUS Girard. Bumpers 
Body ovate, strongly compressed, the ventral outline much more strongly curved than the dor- 
sal, both carinate; mouth strongly oblique, slightly superior; maxillary broad, emarginate behind, with 
a large supplemental bone; teeth small, present on jaws, vomer, palatines, and tongue; gill rakers 
long and slender; head mostly naked, the rest of the body covered with small, smooth scales; 
lateral line with a strong arch anteriorly and with or without bony scutes posteriorly; first dorsal 
composed of feeble spines; second dorsal and anal low, longer than the abdomen; caudal deeply 
forked; ventrals small; pectorals long and falcate. 
114. Chloroscombrus chrysurus (Linnseus). Bumper. 
Scomber chrysurus Linnaeus, Syst. Nat., ed. XII, 1766, p. 494; Charleston, S. C. 
Chloroscombrus chrysurus Bean, 1891, p. 87; Jordan and Evermann, 1896-1900, p. 938, PI. CXLV, fig. 394. 
Head 3.6 to 4.3; depth 2.1 to 2.4; D. VIII-I, 26 or 27; A. II— I, 26 to 28. Body very deep, ovate, 
strongly compressed; outline of abdomen extremely convex, much more strongly curved than the 
dorsal outline; head short and deep; snout blunt, shorter than eye, 3.34 to 4 in head; eye 2.65 to 
3.2; mouth nearly vertical; maxillary reaching anterior margin of eye, 2.45 to 2.75 in head; gill 
rakers about two-thirds length of eye, 28 to 33 on lower limb of first arch; lateral line anteriorly with 
a prominent arch, shorter than straight part, without developed bony scutes posteriorly; second 
dorsal and anal about equal in length, the first somewhat more strongly elevated anteriorly, each 
with a sheath of scales at base; pectorals long and falcate in adult, proportionately shorter in young, 
2.9 to 3.6 in length of body. 
Color bluish gray above; sides silvery; a small opercular spot present; a prominent, quadrate, 
black blotch on upper part of caudal peduncle; fins mostly yellowish in life; vertical fins edged with 
dusky. 
This species was not seen during the present investigation and only one specimen has been 
recorded from Chesapeake Bay. The foregoing description is compiled from published accounts 
of the species. 
This fish reaches a small size, rarely exceeding 8 inches in length. It is not valued as food, 
for it is said to be dry and bony. In Colon, Panama, however, it is not infrequently seen in the 
market. Although straying northward to Massachusetts, it is not common north of the coast of 
South Carolina. It appears to be extremely rare in Chesapeake Bay, as already indicated. 
Habitat . — Massachusetts to Brazil. 
Chesapeake localities. — (a) Previous record: Cape Charles city, Va. (b) Specimens in col- 
lection: None. 
89. Genus CARANX Lacepede. Crevallies 
Body oblong or ovate, compressed; dorsal profile anteriorly sometimes strongly convex; head 
rather large, compressed; snout usually blunt; mouth moderate or large, oblique, usually terminal; 
maxillary with a supplemental bone; premaxillary protractile; teeth in the jaws more or less unequal, 
in one or a few series; villiform teeth usually present on vomer, palatines, and tongue; deciduous 
or wanting in some species; gill rakers slender; scales small; lateral line usually arched anteriorly, 
posteriorly armed with bony plates; first dorsal with slender spines, second dorsal and anal similar, 
usually more or less elevated anteriorly; anal preceded by two rather strong, short spines; caudal 
broadly forked; pectorals long and falcate in adult. 
