Hemirbamphuse 23 
Body elongate, greatly compressed, sides nearly parallel and vertical. Head small ; 
eye large, level with dorsal border in profile ; interorbital rather broad, concave ; snout 
short, pointed. Mouth slightly oblique ; beak very long. Minute villiform teeth in 
both jaws; a patch of similar teeth on roof of mouth. Isthmus long, narrow and 
sharp-edged; giil-rakers on first gill-arch 3-+ 12, the longest 44 in diameter of eye ; no 
pseudobranchiae. Dorsal inserted nearer tip of pectoral than base of caudal, and 
midway between tip of ventral and insertion of anal ; anal originating beneath fourth 
ray of dorsal; pectoral moderately long ; ventral short, moderately apart ; caudal deeply 
forked, lower lobe much the longer ; vent midway between tip of pectoral and base of 
caudal. Scales deciduous, rather small ; no scaly flaps at bases of pectorals or ventrals : 
head naked except beneath and behind eye. Lateral line running low along the side 
to the base of caudal. 
Color in formalin dull brown, paler beneath ; side with a slaty silvery lateral band 
to base of caudal ; fins all plain, dusky, though those on lower parts are lighter. 
Described and figured from the type 49 cm. long as measured from tip of beak to 
that of lower lobe of caudal, taken at Misaki, Prov. Sagami, No. 2946, Science College 
Museum, Tokyo. 

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