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PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 189 
abdomen; pseudobranchie persistent; pectoral fins elongate; scales 
small. 
a. Dorsal outline more strongly curved than ventral outline. 
b. Dorsal and anal each followed by 8 or 9 finlets....MrGaALasPis (Asiatic species). 
bb. Dorsal and anal each with a single detached finlet; body slender. 
DECAPTERUS, 1. 
bbb. Dorsal and anal without finlets. 
c. Lateral line armed posteriorly with bony shields, or scutes. 
d. Scutes well developed along entire length of lateral line. -....TRACHURUS, 2. 
dd. Scutes well developed along straight posterior portion of lateral line only. 
CARANX, 3. 
cc. Lateral line without shields; body short and deep, strongly compressed. 
SELENE, 4. 
aa. Dorsal outline less strongly curved than ventral outline; body greatly com- 
pressed, its edges everywhere trenchant ; armature of lateral line obsolete, or 
TIGATUVENONS ai este a ei wln Wiles 2 els eevee Sato rcin Gewese cle aes CHLOROSCOMBRUS, 5. 
GENUS 1.—DECAPTERUS Bleeker. 
DECAPTERUS Bleeker, Natuurk. Tydskr., 1855, v, 417 (kurra). 
EvsTroMATovus Gill, Proc. Ac. Nat. Sci. Phila., 1862, 261 (kurroides). 
GYMNEPIGNATHUS Gill, U. ¢., 261 (macrosoma). 
EVEPIGYMNUS Gill, 1. c., 261 (hypodus). 
Type CARANX KURRA C. & V. 
ANALYSIS OF SPECIES OF DECAPTERUS. 
a. Shields of lateral line numerous (40 to 50 in number); depth, 5 in length; teeth 
present on jaws, vomer, and palatines; none on tongue. 
6. Dorsal with 30 soft rays; lateral line anteriorly, with about 12 distinct, small 
ristelpomises te. AOR Sots ets se ek eat Deeks sy space PUNCTATUS,, 1. 
Porn sli yanH od BOT TAVA 2. = pa ccae Sarna c= 545-9 oon sitvab aeccek SCOMBRINUS, 2. 
aa. Shields of lateral line few (25 to 35) in number. 
e. Lateral line anteriorly with black points; teeth “almost insensible”; 
caudal keel of about 35 shields; depth, 5% (in total); pectorals, 6 in total 
LETHE ERB teh 9 SS RODe HOC EOS OSc She Ee oot areas Aaaee SANCTZ-HELENZ, 3. 
ec. Lateral line without dark points. 
d, Teeth distinct on lower jaw and tongue; caudal keel of 30 distinct shields ; 
PONUA Ber LOMO NY ene aoe eno awe Ste eae Hypovpus, 4. 
dd. Teeth obsolete; caudal keel of 25 shields; depth, 5% in length. 
MACARELLUS, 5. 
1. Decapterus punctatus (Agassiz) Gill.—Cigar-fish ; Round Robin; Scad. 
Scomber hippos Mitchbill, Trans. Lit. & Phil. Soc. N. Y., 1, 1815, pl. 5, f. 5 (New 
York; not of L.). 
Caranz punctatus Agassiz, Spix, Pisce. Bras., p. 108, tab. 56a, f. 2 (Brazil). 
Caranz punctatus Cuv. & Val., ix, 38, 1833 (Martinique); Giinther, ii, 426. 
Decapterus punctatus Poey, Syn. Pise. Cubens., 368; Poey, Enum. Pisce. Cubens., 
79; Jor. & Gilb., Syn. Fish. N. A., 432. 
? Caranx suareus (Risso) C. & Y., ix, 33 (Mediterranean). 
Habitat.—Cape Cod to Brazil; occasional northward; common on the 
coasts of Florida and in the West Indies. 
