56 NEW FISHES FROM PACIFIC COAST GILBERT. 



low it. Inside of month and gill cavity not dark. Dorsal and caudal 

 with traces of faint dark bars. 

 One specimen, 6^ inches long, from Acapulco, Mexico. 



8. Etrumeus acuminatus sp. nov. 



Differing from E. micropus and E. sadina in the much smaller eye, the 

 longer, more acuminate snout, and the posterior dorsal. 



Body slender, the belly rounded, the depth 6 in length ; head, 3J. 

 Eye small, 1| in snout, 4:j in head. Maxillary scarcely reaching ver- 

 tical from front of orbit, about as long as snout, 3 in head. Teeth evi- 

 dent in both jaws and along sides of maxillary and on vomer and pal- 

 atines. 



D. 16 or 17 ; A. 10 or 11. 



Front of dorsal nearer base of caudal than tip of snout (nearer 

 snout in other species). Ventrals inserted behind the dorsal, slightly 

 nearer base of caudal than base of pectorals. 



Scales small, in about sixty transverse rows, judging from the im- 

 pressions on the skin. 



Color: Translucent, a faint trace only of a narrow lateral silvery 

 streak, above which is a line composed of coarse black specks. Sides 

 of head silvery, with little or no black specking. Mandible and occi- 

 put dusky. More or less black specking along base of vertical fins, 

 and a narrow black behind the anal. 



Six specimens of this species were secured in the Gulf of California^ 

 at station 3012 (22 fathoms), and in San Luis Gonzales Bay, the largest 

 specimens IJ inches long. 



9. Argentina sialis sp. uov, 



Eesembling A. elongata, but with a much deeper body, and a larger 

 eye. 



Head 3 inches in length; depth 5 J. D. 11; A. 12. 



Length of maxillary from tip of snout 4 in head, If in snout. Snout 

 but little longer than eye, 3^ in head; eye 3^; interorbital width 4. 



Upper jaw with a'narrow band of small teeth borne on the vomer 

 and the front of the palatines, not on the very narrow weak premaxil- 

 laries. Lower jaw toothless. Edge of tongue with a series of strong, 

 backwardly-curved teeth, six or eight in number. Gill rakers numer- 

 ous, slender, rather short, about twenty-five in number below angle of 

 arch. 



Front of dorsal fin nearer tip of snout than base of caudal by a dis- 

 tance equaling diameter of pupil. Ventrals inserted behind middle of 

 dorsal, midway between base of caudal and front of orbit, extending 

 but little more than half way to front of anal. Caudal forked. 



Scales not spinous, the margins entire, a few only preserved along 

 sides of tail. There were forty or forty-five in a longitudinal series. 



