GILBERT AND STAUKS — FISHES OF PANAMA BAY ii'i 



I02. Hyporhamphus roberti {Cuvier d- Vulenciennen). 

 One small specimen taken, about l'» vm. in Kn^lh. 



103. Hemirhamphus saltator sp. nov. 



Platk IX, Fiii. Ki. 



Htiiiir/iainphus ba/ao ]oRi'i.\ti, 18.S5, p. 370 (Panama) ; ncit of Lc Sueur. 



Head from tip of upper jaw, 4J in lenijth from the siune fxjint to base of caudal; depth 6J to 

 6,"u. I)ors;iI 13 or 14; anal 11 or 12; scales 53 or 54. 



Hody compressed, the sides vertical and |3arallel. Mandible from ti[) of upfxrr jaw 4 J to 4 1 in 

 leni;th. diameter of eye slightly exccedini,^ interorbital width, 4 to 4I in head. I'ectoral i J to 1 J in 

 head. In.sertion of ventrals midway between base of caudal and anterior third of |X'ctoral (in. I.^st 

 viiural ray ])n>(iiii-cil, ,iiui lousier than first ray. F"ront of anal a little anterior to middle of dorsal base; 

 the posterior enil of anal base coterminous with that of d(jrs;il. Posterior ray of dors;il jirotluced; 

 anterior rays about a third hit;her than those of anal. 



Color uniform brijjht silvery on Imvtr part of sides, dusky silvery above. An inconspicuous, 

 dark, narrow lateral streak extends from u])]>er annle of tjill-oiK-ninij^ to just above middle of caudal. 

 Top of head and upper jaw dark. Dors;il and caudal dark; jxjctorals dusky; ventrals colorle.ss, except 

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



This species is closely related to //. brasiliensis from tlie 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 4() cm. in entire length. 



(H| October '21, 190J. 



