108 TELEOSTEI : ACANTHOPTEEI. — 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. { Trachinotinw.) 

 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. (Seriolinm.) 

 Tc. D. and A. without finlets. 



I. Membrane of D. spines disappearing with age. 



Nauceates, 140. 



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



Ick. D. and A. each followed by a two-rayed finlet. Elagatis, 142. 



131. OLIGOPLITES Gill. (oAi'yoy, small; ottXitjjj, armed.) 



273. O. saurus (Blocli & Sclmeider). Leather-Jacket. 

 Runner. Bluish, silvery below ; fins yeUow. Body lanceolate ; 

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

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

 like a lizard.) 



132. DECAPTERTTS Bleeker. (8«a, ten ; wrepov, 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 4J^ ; depths. D. VIII-1, 

 30-1. A. 11,-1, 24-1. L. 12. W. I., 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 5f . W. I., rarely N. 



133. TRACHURUS Rafinesque. (jpixovpos, ancient name, from 

 Tpaxys, rough ; ovpa, 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-l, 28. L. 12. S. Europe, etc., occasional 

 on our coast. (£m.) 



134. TRACHXTROPS Gill. {Trachurus; (Si/<', appearance.) 



277. T. orumenophthalmus (Bloch). Big-eyed Scad. Chi- 

 CHARRO. GoGGLER. Eye Very large, 3 in head, with very large 

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

 A. II-l, 22. L. 12. Warm seas. N. to Cape Cod. (Lat., 

 crumena, purse ; d^^aX/xos, eye.) 



135. CARANX Lacepfede. (A corruption of the Portuguese 



Acarmma, French Carangue.') 

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



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



falcate in front ; maxillary broad. ( Caraiix.) 



