198 U. S. BUREAU OF FISHERIES 



Genus 499. COLOLABIS Gill. 



Cololabis Gill, Proc. U. S. Nat. Mus., XVIII, 1895, 176 {Scomberesox 

 brevirostris Peters). 



1541. Cololabis brevirostris (Peters). 



Coast of California, south to San Diego in the open sea; often in schools. 

 Scomberesox brevirostris Peters, Monatsberichte Akad. Wiss. Berlin, 



July, 1866, 521, Tomales Bay, Calif.; perhaps not separable from the 



Japanese Cololabis saira Brevoort. 



Family 121. HEMIRAMPHIDiE. Halfbeaks 



Genus 500. EULEPTORHAMPHUS Gill. 



Euleptorhamphus Gill, Proc. Acad. Nat. Sci. Phila., XI, 1859, 156 (iJ. 

 brevoorti Gill = probably E. velox Poey). 



1542. Euleptorhamphus longirostris (Cuvier). 



East Indies; Galapagos Islands. 



Hemiramphus longirostris Cuvier, R^gne Anim., ed. 2, II, 1829, 286, 

 warm seas of both hemispheres. 



1543. Euleptorhamphus velox Poey. Slender half beak. 



West Indies, occasionally northward in the Gulf Stream to Massa- 

 chusetts. 



? Euleptorhamphus brevoortii Gill, Proc. Acad. Nat. Sci. Phila., XI, 

 1859, 156, no locality. 



Euleptorhamphus velox Poey, Synopsis, 1867, 383, Cuba; perhaps identical 

 with the preceding. 



Genus 501. HYPORHAMPHUS Gill. Halfbeaks. 



Hyporhamphus Gill, Proc. Acad. Nat. Sci. Phila., XI, 1859, 131 {H. 

 tricuspidatus Gill= Hemirhamphus unifasciatus Ranzani). 



1544. Hyporhamphus unifasciatus (Ranzani). Common half beak; Escribano; 



P a jar it o. 



Tropical seas on both coasts of America from Brazil north to Rhode 

 Island, New Jersey, Guaymas, and Mazatlan; generally common 

 from Key West to Rio de Janeiro; also from Guaymas to the Gala- 

 pagos; variable; but the distinction into two or more species not 

 trustworthy. 



Hemirhamphus unifaciatus Ranzani, Nov. Com. Acad. Sci. Bonon., 

 V, 1842, 326, Brazil. 



? Hemirhamphus picarti Cuvier and Valenciennes, Hist. Nat. Poiss., 

 XIX, 1846, 18 (25), Bono, Algiers. 



Hemirhamphus richardi Cuvier and Valenciennes, loc. cit., 19 (26), 

 St. Croi.x, Antilles. 



Hyporhamphus tricuspidatus Gill. Proc. Acad. Nat. Sci. Phila., XI, 

 1859, 131, Barbados. 



Hemirhamphus fasciatus Poey, Memorias, II, 1861, 299, Cuba; not 

 of Bleeker. 



1545. Hyporhamphus roberti ^^ (Cuvier and Valenciennes). 



Both coasts of tropical America; West Indies and Brazil north to Rhode 

 Island, and on the Pacific coast from Gulf of California to the Gala- 

 pagos. 



Hemiramphus roberti Cuvier and Valenciennes, Hist. Nat. Poiss., XIX, 



1846, 18 (24), Cayenne. 



• 



1546. Hyporhamphus gilli Meek and Hildebrand, 



Acapulco to the Galapagos. 



Hyporhamphus gilli Meek and Hildebrand, Field Mus. Nat. Hist. Pub. 



215, Zool. Ser., XV, Dec. 20, 1923, 240, PI. XVII, fig. 1, Panama 



Bay, Balboa. 



1547. Hyporhamphus rosae (Jordan and Gilbert). 



Coast of southern California and probably southward. 

 Hemiramphus rosae Jordan and Gilbert, Proc. U. S. Nat. Mus., Ill, 

 1880, 335, San Diego, Calif. 



M This species is slenderer than H. unifasciatus, with longer beak and more numerous gill rakers, 28 to 

 SI on lower limb (21 in H. unifasciatus). 



