122 PROCEEDINGS OF THE ACADEMY OP [1884. 



dd. Body oblong ; the dej)th in young and old about | 

 length of body. rhodopus. 5. 



aa. Dorsal with 25 to 21 soft ra3'S ; anal with 22 to 26 soft rays ; 

 body oblong, rather robust ; greatest thickness 3 in greatest 

 depth of body ; depth less than half length ; lobes of 

 vertical fins short, not black ; sides without dark cross- 

 bars. 



/. Dorsal with 25 soft rays ; anal with 22 soft rays ; 

 profile from snout to procumbent spine evenly 

 convex. carolinus. 6. 



^. Dorsal with 21 ; anal with 26 soft rays, 



cayennensis. *l. 



Trachynotus glaucus. Gaff-top-nail Pompano. Old loife. 



ChoBtodon glaucus Bloch, Ichthyologia, PI. ccx, about 1783 (oij a figure 

 by Plumier). 



AcantMnion glaucus Lacdpede, iv, 1803, 500 (copied). 



Trachinotus glaucus Cuvier & Yalencieuues, Hist. Nat. Poiss., viii, 1831, 

 400 (Brazil, Havana, Mexico, San Domingo, Martinique and Gua- 

 deloupe) ; Guichenot, "Poiss. Ramon de la Sagra, Hist, Cuba, 107, 

 1845" (Cuba). 



Trachynotus glaucus Giinther, Cat. Fishes Brit. Mns., ii, 1860, 483 

 (Antilles, Jamaica and Rio Janeiro) ; Gill, Proc. Acad. Nat. Sci. 

 Phila., 1862, 438 (Charleston, S. C.) ; Gill, Rep. U. S. Fish Com., 

 1871-2, 803 (name only) ; Goode, Proc. U. S. Nat. Mus.,' 1879, 112 

 (name only) ; Goode, Bull. U. S. Fish Com.. 1881, 37, 40 (Ber- 

 mudas) ; Goode & Bean, Proc. U. S. Nat. Mus., 1882, 237 (name 

 only) ; Jordan & Gilbert, Proc. U. S Nat. Mus., 1882, 270 (Pensa- 

 cola) ; Jordan & Gilbert, Syn. Fish. N. A., 1882, 443 ; Jordan & 

 Gilbert, op. cit, 912. 



Habitat. — Atlantic Coasts of America : Charleston, Pensaeola, 

 Key West, Bermudas, Jamaica, Antilles, Guadaloupe, Martinique 

 and Rio Janeiro. Also erroneously ascribed (by confusion with 

 Trachynotus fasciatua) to Lower California and Panama. 



Head 4 in length of body ; depth 2 ; D. VI-I, 19 ; A. II-I, 18 ; 

 length (No. 440, I. U. Key West) 13 inches. 



Body elliptical, much compressed ; snout blunt, subtruncate, 

 vertical from mouth to horizontal from upper edge of eye ; the 

 profile from supraorbital to front of dorsal fin convex ; eye Z% in 

 head ; mouth nearly horizontal ; maxillary nearly reaches ver- 

 tical from middle of ej'e, its length 3 in head ; jaws without 

 teeth in the adult ; dorsal spines separate, in the adult ; dorsal 

 and anal fins falcate, the anterior soft rays reaching middle of 



