24 



UNITED STATES AND MEXICAN BOUNDARY 



The color is of a brilliant silvery lustre ; the dorsal and ventral filament being blackish 

 Plate XI, fig. 7, represents Argyreiosus capillaris, size of life, although not fully grown, 



Catal. 

 number. 



712 



No. of 

 spec. 



Locality 



2 



Matamoras, Mexico 



List of specimens 



Whence obtained 



Nature of 

 specimen. 





D. N. Couch Alcoholic . . 



Collected by 



L. Berlandier 



VOMER SETAPINNIS, Grd. 



Plate XI, Fig. 8. 



Spec Char. — Greatest depth somewhat more than the half of the total length in all the specimens now before us, the largest 

 of which we have caused to be figured. The rule appears to be that the depth is less than the half of the length, the body 

 being proportionally more elongated than represented in the accompanying figure. 



Syn. — Zeus setapinnis, Mitch, in Trans. Lit. & Philos. Soc. N. Y. I, 384, pi. i, fig. 9. 



Vomer brownii, Cuv. & Val. Hist. nat. Poiss. IX, 1833, 389; pi. cclvi DeKay, N. Y. Fauna, IV, 1842, 127; 



pi. X5V, fig. 78. — Storer, Synops. 1846, 105. 



The color is of a brilliant silvery tint, somewhat greyish along the dorsal region, especially 

 in full grown specimens. The second dorsal being minutely black dotted^ and the pectorals 

 olivaceous. 



Plate XI, fig. 8 ; represents, size of life, Vomer setapinnis, not quite fully grown. 



List of specimens. 



Catal. 

 No. 



711 



No. of 

 spec. 



Locality. 



When collected. 



Whence obtained. 



5 



Brazos Santiago, Texas . 



Nature of 

 specimen. 



Collected by 



1853 



G. W r urdeinann 



Alcoholic 



G. Wiirdemann 



Family TAENIOIDAE. 



We are indebted to G. Wiirdemann for two specimens ofTrichiurus Upturns, Linn., collected, 

 one at St. Joseph's Island, the other at Brazos Santiago, along the Texan shore of the Gulf of 

 Mexico. 





Family GOBIDAE. 



GOBIONELLUS, Girard. 



It is our design to place in this genus such species of Gobioids, the body of which is 

 generally elongated, and always protected with scales; having likewise two dorsal fins, an anal 

 nearly as long as the second dorsal, and an elongated and pointed caudal fin. 



Under this appellation will come Gohius lanceolatus, G. hacalaus, and G. smaragdus, all 

 three inhabitants of the Caribbean sea ; and, finally, G. brasiliensis also. 



