FISHES OF WEST COAST OP PERU. 43 



Family BELONIDAE. 



THE NEEDLEFISHES. 



Genus TYLOSURUS Cocco. 



64. TYLOSURUS STOLZMANNI (Steindachner). 



Belone stolzmamii Steindachner, Iclith. Beitr., vol. 7, 1S78, p. 21 ; Tumbes. 



Peru. 

 Tylosurus stolzmanni Jordan and Eveemann, Fishes North and IVIid. Amer., 



vol. 1, 1S9G, p. 713. — Gilbert and Stacks, Fishes Panama Bay, Mem. 



California Acad. Sci., vol. 4, 1904, p. 53. 



Family HEMIRHAMPHIDAE. 



THE BALAOS. OK HALFBEAKS. 



Genus HYPORHAMPHUS Gill. 



65. HYPORHAMPHUS UNIFASCIATUS (Ranzani). 

 CKOELO. 



Hemirliamphiis iinifasciatiis Ranzani, Nov. Comm. Acad. Sci. Bonon., vol. 5, 



1842, p. 326; Brazil. 

 Hyporhamphus unifasciatus Jordan and Evermann, Fishes North and Mid. 



Amer., vol. 1, 1896, p. 720; vol. 4, 1900, pi. 116, fig. 311.— Gilbert and 



Starks, Fishes of Panama Bay, Mem. California Acad. Sci., vol. 4, 



1904, p. 52. 



One specimen, field, No. 1029, 28.3 cm. in length from Capon. 



Head, including mandible, 2.92 in length of body from tip of 

 mandible to base of caudal, 2.47 in length from tip of upper jaw to 

 base of caudal; head from tip of upper jaw 5.36 (4.53) ; depth 8.5 

 (7.23) ; distance from tip of mandible to origin of dorsal 1.24 (1.03) ; 

 distance from tip of mandible to origin ventrals 1.58 (1.34) ; eye 

 7.33 in head, including mandible, 4.53 in head measured from tip of 

 upper jaw; interorbital 6.88 (3.75); pectoral 2.*84 (1.55); D. 14; 

 A. 15 ; scales 52. 



Length of mandible from tip of upper jaw less than rest of head, 

 2.2 (1.2) in head; anal opposite dorsal; ventrals inserted midway 

 between posterior border of eye and base of caudal; lower caudal 

 lobe longest; scales large, dorsal and anal densely scaled. 



Color in alcohol, back dusky bluish; sides and belly silvery, tinged 

 with yellow; fins dusky. 



Family EXOCOETIDAE. 



THE FLYINGFISHES. 



KEY TO GENERA. 



fl\ Ventral fins inserted anteriorly, much nearer tip of snout than base of caudal, 

 not used as organs of flight, their tips not reaching nearly to front of dor- 

 sal ; anal fin long, its base nearly equal to that of dorsal Exocoetus, p. 44. 



