g^. Ho teeth on beak in its extension before upper jaw, 
--—-—-————ZemrchogtemSj,. 
g2. Teeth on beak in extension before upper jaw.——— 
—..-~-.~~—a»i—~HgrR ^hamphodon. 
2 
f , Lower jaw not produced in beak-—-—— —Arrh^phus 
■r. 
Melapedalion. 
2 
b . Dermogenyinae. Dcjrsal begins behind anal origin and fin . 
shorter than anal. 
h^. Lower jaw expended as long beak.—— Dermogenys, 
O 
h , Lower jaw not extended as long beak.-- Homorhamphus. 
Genus Arrhainphus Gttnther 
Arrhamphus G'ffHTHER, Cat. Fish; .Brit. Mus., toI. 6, p, 276, 
1866. (Type Arrhamphus solerolepis GtJHTHER, monotypic.) 
Body elongate, compressed,, Head moderate, Premaxillaries 
form triangular plate, broader than long. Mandible but slightly pro- 
% 
truded before upper jaw, not prolonged into long beak, Maxillai^ not 
reaching eye. Teeth in narrow or broader bands in both jaws, minute 
or moderate and often tricuspid. Gill opening wide. Gill rakers 
present. Scales moderate or large, rather deciduous. Lateral line 
low. Dorsal far posterior. Anal opposite and similar to dorsal or 
more backward. Caudal forked. Pectoral high, less than head. Ven¬ 
tral inserted nearer head than caudal base. 
East Indies, Philippines, Australia, 
