GILBERT AND STARKS — FISHES OF PANAMA BAY 53 



102. Hyporhamphus roberti (Cuvier <i- Valenciennes). 

 One small specimen taken, about 15 cm. in length. 



103. Hemirhamphus saltator sp. nov. 



Plate IX, Fig. 16. 



Hemirhamphus (^rt/af Jordan, 1885, p. 370 (Panama); not of Le Sueur. 



Head from tip of upper jaw, 4^ in length from the same point to base of caudal; depth 6| to 

 6y%. Dorsal 13 or 14; anal 11 or 12; scales 53 or 54. 



Body compressed, the sides vertical and parallel. Mandible from tip of upper jaw 4^ to 4^ in 

 length. Diameter of eye slightly exceeding interorbital width, 4 to 4^ in head. Pectoral i| to i| in 

 head. Insertion of ventrals midway between base of caudal and anterior third of pectoral fin. Last 

 ventral ray produced, and longer than first ray. Front of anal a little anterior to middle of dorsal base; 

 the posterior end of anal base coterminous with that of dorsal. Posterior ray of dorsal produced; 

 anterior rays about a third higher than those of anal. 



Color uniform bright silvery on lower part of sides, dusky silvery above. An inconspicuous, 

 dark, narrow lateral streak extends from upper angle of gill-opening to just above middle of caudal. 

 Top of head and upper jaw dark. Dorsal and caudal dark; pectorals dusky; ventrals colorless, except 

 a slight dusky tinge towards ends of outer rays; anal white. 



This species is closely related to H. brasiliensis from the West Indies, with 

 which it has been identified. It differs from that species in the smaller eye, longer 

 mandible, and longer pectoral fin. The insertion of the ventrals is more anterior; 

 the horizontal length of the opercle is greater; the anterior rays of the dorsal are 

 lower, and there are one or two more scales in a horizontal series. 



Eight specimens were taken, from 41 to 46 cm. in entire length. 



C) October 21, I90:j. 



