232 PROCEEDINGS OP THE ACADEMY OF [1884. 



A KEVIEW OF THE AMERICAN SPECIES OF SCOMBEROMORUS. 

 BY SETH E. MEEK AND ROBERT G. NEWLAND. 



In the present paper we have given the synonymy of the four 

 American species of the genus Scomberomorus Lacepede (= Cy- 

 brum Cuvier), and an analytical key, by which the species may be 

 distinguished. 



The specimens upon which the paper is based, belong to the 

 Museum of the Indiana University. The}^ have been collected 

 by Professor Jordan at Key West, Havana, and Monterey. 



We acknowledge our indebtedness to Professor Jordan for the 

 use of his library and for valuable aid. 



Analysis of the American Species of Scomberomorus. 



a. Dorsal spines 11 or 18; lateral line descending obliquely; gill 

 rakers comparatively long, more than half diameter of eye. 



b. Teeth slender, subcorneal, their length more than twice their 

 width at base ; gill rakers long and slender, about f 

 diameter of eye, about 18 below the angle; maxillary 

 reaching to opposite posterior margin of eye. Color of 

 male dark steel-blue, without streaks or spots ; female 

 with two rows of alternating round bronze spots of about 

 the size of pupil; fins nearly plain, dark; head 5^ in 

 length; depth 5|. D. XVII-16-VIII ; A. I-IG-YIII. 



concolor. 1. 



bb. Teeth large, triangular, compressed, their length not twice 

 their breadth at base ; gill rakers rather slender, their 

 length about f diameter of eye; about 12 below the 

 angle. 



c. Color bluish silvery above, with bright reflections ; sides 

 in both sexes, with numerous bronze spots about as 

 large as pupil, no longitudinal stripes ; maxillary 

 reaching to opposite posterior part of orbit; angle of 

 preopercle not produced backwards ; pectoral scaly at 

 base only ; caudal peduncle rather robust, its least 

 depth 4§ in head, caudal widely forked ; head 4| in 

 length ; depth 5^. D. XVIII-18-IX ; A. II-U-VIII. 



maculatus. 2. 



