PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 123 



The species of this genus are very closely related, aud many of those 

 current are very doubtful. Omitting all discussion of those described 

 from farther south, I venture on the following analysis of the species 

 of Seriola recorded from the United States. It may be that some of 

 these are really not distinct from others, but at present I think them 

 all valid: 



a. Dorsal aud aual fius little elevated, the height of their anterior lobes less thau half 

 depth of body. 

 b. Head longer thau deep, 

 c. Soft dorsal very loug, its rays 36 to 38; maxillary reaching middle of orbit. 

 d. Body deep; depth 3 to 3| in length; nape cariuated; black cross bands 



permanent. Cape Cod to Cape Hatteras Zoxata. 



dd. Body comparatively slender, its depth of to 4 in leugth ; nape, in adult, 

 rounded ; cross bands fading with age. Cape Hatteras to Texas and 



southward ? Carolinensis. 



ce. Soft dorsal shorter, its rays 31 to 36. 



e. Mouth comparatively large; the maxillary 2 to 2| in head, reaching about 

 to middle of jjupil ; nape rounded in adults ; cross bands present 

 only in very young. 

 /. Body slender, its depth about 4 in length ; head 3| to 3f in length ; soft 



dorsal 32 to 34. West Florida to Brazil Lalandi. 



//. Body comparatively deep, its depth about 3 in length ; head d-^g ; soft 

 dorsal rays 30 to 32. Florida Keys to West Indies and Mediterranean 



Sea DuMERiLi. 



ee. Mouth smaller; the maxillary 2| in head, barely reaching front of i^upil;, 

 body rather slender, the depth 4 in leugth ; soft dorsal rays 34 to 36 ; 

 caudal fin yellowish. Point Concepcionto Cape San Lucas. Dorsalis. 

 hb. Head deeper than long ; body banded at all ages, the bands narrow, ar- 

 ranged in pairs ; soft rays of dorsal 30. South Carolina to West 



Indies Fasciata. 



aa. Dorsal and anal fius much elevated, their anterior lobes more than half depth of 



body; body compressed, the back elevated, the occiput somewhat 



carinated ; soft dorsal rays 29 to 31. 



g. Body moderately deep; the greatest depth 31 in length (4 in total); 



temporal band pale yellowish-brown. W^est Indies, north to Pen- 



sacola Falcata. 



gg. Body very deep ; the greatest depth 3^ in total length ; temporal 

 band nearly black. Mediterranean to Buenos Ayres and Florida 

 Keys ". EivoLiANA. 



All the above except S. fasciata and S. rivoliana have been collected 

 and studied by the writer. These two I have never seen. 



71. Trachynotus carolinus (L.). I'oinpanu. 



Not very common; one specimen obtained. As elsewhere, highly 

 valued as a food-fish, but irregular in its appearance. 



72. Trachynotus rhodopus Gill. Permit. 



(Trachyitottts rhodopus et nasutus Gill.; Trachynotus goreensis Goode & Beau,, 

 not of C. & v.; 'lrachynotns carolui us Foey.) 



Not very common ; only young ones obtained. These taken with the 

 seine in the surf. This species reaches a larger size than the other 

 American Pompanoes. Its common name, "Perm?^," seems to be acor- 

 rui)tion of the common Spanish name " Palometa." The drawings made 



