108 TELEOSTEI : ACANTHOPTERI. XX. 



cc. Pectoral fins short, not falcate. 



i. Maxillary without supplemental bone; anal similar to soft dorsal; 



its base much longer than abdomen; tail unarmed. (Trachinotince.) 



j. Forehead convex; teeth small, lost with age ; membrane of spinous 



dorsal disappearing with age ...... TKACHINOTUS, 139. 



ii. Maxillary with supplemental bone ; A. shorter than soft D., its base 



not longer than abdomen. (Seriolince.) 

 lc. D. and A. without finlets. 



Z. Membrane of D. spines disappearing with age. 



NAUCRATES, 140. 

 II. Membrane of D. spines persistent ...... SEKIOLA, 141. 



JcJc. D. and A. each followed by a two-rayed finlet. ELAGATIS, 142. 



131. OLIGOPLITES Gill. (oAfyos, small; on-Ainyy, armed.) 



273. O. saurus (Bloch & Schneider). LEATHER-JACKET. 

 RUNNER. Bluish, silvery below ; fins yellow. Body lanceolate ; 

 fins low. Head 5; depth 4. D. V-l, 20. A. II -1, 20. L. 18. 

 Warm seas ; rarely N". (o-avpos, old name of some fish that skips 

 like a lizard.) 



132. DECAPTERUS Bleeker. (Se/ca, ten ; irrfp6v, fin.) 

 a. Scutes about 40 ; teeth present. 



274. D. punctatus (Agassiz). SCAD. CIGAR-FISH. ROUND 

 ROBIN. Bluish ; a dark opercular spot ; about twelve small black 

 spots on lateral line anteriorly. Head 4^; depth 5. D. VIII-1, 

 30-1. A. II, -1, 24-1. L. 12. W. L, etc. ; occasional N. ; com- 

 mon S. (Lat., dotted.) 



aa. Scutes about 25 ; teeth obsolete. 



275. D. macarellus (Cuv. & Val.). Lateral line unspotted; 

 D. soft rays 33. A. 27 ; depth 5} . W. L, rarely N. 



133. TRACHURUS Rafinesque. (rpd^ovpoy, ancient name, from 

 rpaxvs, rough ; ovpd, tail.) 



276. T. trachurus (L.). HORSE-MACKEREL. SAUREL. Scutes 

 all large, about 72 (35-}-37) in number; depth about 4. D. 

 VIII-1, 29. A. II- 1, 28. L. 12. S. Europe, etc., occasional 

 on our coast. (Eu.) 



134. TRACHUROPS Gill. ( Trachurus ; <^, appearance.) 



277. T. crumenophthalmus (Bloch). BIG-EYED SCAD. CHI- 

 CHARRO. GOGGLER. Eye very large, 3 in head, with very large 

 adipose eyelid; scutes 40. Head 3^; depth 3. D. VIII-1, 26. 

 A. 11-1,22. L. 12. Warm seas. N. to Cape Cod. (Lat., 

 crumena, purse ; o$0aA/Lio j, eye.) 



135. CARANX Lacepede. (A corruption of the Portuguese 



Acarauna, French Carangue.) 

 a. Teeth in jaws in few series, unequal, those above enlarged, those below 



uniserial; teeth on vomer, palatines and tongue; soft dorsal and anal 



falcate in front ; maxillary broad. ( Caraitx.) 



