128 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
front of eye, and with a thick flap over nostril; interorbital space flattened, the top of the head convex 
posteriorly; gill-opening large, with a long, thin, narrow sharp-edged isthmus; gillrakers rather long, 
thin, pointed, and numerous; no pseudobranehiie; peritoneum dark brown; scales rather large, very 
deciduous and narrowly imbricated, especially along the sides; no scaly flaps at bases of pectorals or 
ventrals; a number of small scales on the basal portions of the anterior dorsal rays. Lateral line running- 
low along the side to base of caudal; origin of dorsal well before that of anal and about the last fourth 
of the space between front margin of eye and base of caudal; dorsal with anterior rays longest; anal 
similar to dorsal, its base 1.5 in that of the latter; caudal forked, the lower lobe much longer and 
stronger than the upper; pectoral long, the upper ray enlarged and longest; ventrals rather short, the 
rays all strong, flattened, and the inner ones much the longer, the margin of the fin concave, ending in 
sharp points; caudal peduncle compressed, its least width 2 in its least depth. 
Color in alcohol, more or less deep silvery, dull bluish black on the back, and as the scales have all 
more or less fallen, the edges of the pockets are blackish; sides and lower portions silvery white; fins 
all more or less gray, the dorsal and caudal deeper; top of the head and beak blackish. 
This description is from a specimen 14 inches long (No. 03564). We have many specimens, vary- 
ing in length from 13.5 to 15.5 inches. All were taken at Honolulu, some in 1889 by Dr. Jenkins, 
who considers the species identical with II. brasiliensis. It may be distinguished from the latter, how- 
ever, by its longer pectoral fin. 
? Esox maxilla inferiors proclvcta Browne, Hist. Jamaica, 443, 1756, Jamaica. 
f Esox brasiliensis Lin-nseus, Syst. Nat., Ed. X, 314, 1758, Jamaica; after Browne; the Timucu of Marcgrave wrongly 
included in the synonymy; Bloch, Ichth., 391, 1801, corrected synonymy and description. 
? Hemirhamphus marginatus Le Sueur, Journ. Ac. Nat. Sci. Phila., II, 1823, 135, Lesser Antilles; not of Forskal. 
Hemiraniphus depauperatus Lay & Bennett, Zool. Beechey’s Voyage, 66, 1839, Oahu; Fowler, Proc. Ac. Nat. Sci. Phila. 
1900, 499, PI. XIX, fig. 3 (Hawaiian Islands); Snyder, Bull. U. S. Fish Comm., XXII, 1902 (Jan. 19, 1904), 522 (Hono- 
lulu; Albatross Station 3834). 
f Hemirhamphus browni Cuvier & Valenciennes, Hist. Nat. Poiss., XIX, 13, 1846, Guadaloupe; Martinique. 
? Hemirhamphus plevi Cuvier & Valenciennes, 1. c., 19, Martinique; San Domingo; Gunther, Cat., VI, 369, 1866; Meek A 
Goss, Proc. Ac. Nat. Sci. Phila. 1884, 225. 
? Macrognalhus brevirostris Gronow, Cat., 148, 1854, Jamaica; after Browne. 
? Hemirhamphus filamcntosus Poey, Memorias, II, 297, 1861, Cuba. 
f Hemirhamphus brasiliensis, Gunther, Cat., VI, 270, 1866; Jordan & Gilbert, Synopsis, 224, 1883. 
Hemiramphus brasiliensis, Jenkins, Bull. U. S. Fish Comm., XXII, 1902 (Sept. 23, 1903), 434 (Honolulu). 
Genus 74. EULEPTORHAMPHUS Gill. 
This genus consists of pelagic species related to Ilemiramphus, the body much more slender and 
greatly compressed, and the pectorals very long, approaching those of the flying-fishes; air-bladder not 
described, probably cellular. 
Two or 3 species known, 1 from the Hawaiian Islands. 
Euleptorhamphus Gill, Proc. Ac. Nat. Sci. Phila. 1859, 151 (brevoorti = velox) . 
87. Euleptorhamphus longirostris (Cuvier) . “Iheihe.” Fig. 43. 
Head (from tip of snout) 6 in trunk; depth 10.75 in trunk; D. 24; A. 23; P. 9; V. 6; scales about 
105, according to the pockets; width of head about 1.25 in its depth; snout about 3.17 in head; eyeabout 
3.17 in head, 1.17 in postocular part of head, a little greater than width of interorbital space; jiectoral 
1.6 in head to end of broken beak; ventral 3 in head (from tip of snout). 
Body very long, greatly compressed, the sides flattened, and the middle of the back with a sub- 
carinate ridge; head compressed, flattened on top and the lower surface narrowly constricted; snout 
