Back brown extending down to axial bright 
silvery white band fading fading imperceptably pale with 
whitish tints below. Sides of head and iris bright 
silvery white, also posterior sides of mandible. Beak 
dusky to blackish. Dorsal and caudal grayish, former 
with broad blackish basal band. Other fins all more 
or less whitish. 
Diagnosis . ii.pparently distinct in having the 
fifth branched dorsal ray prolonged and the structure 
* 
of the anal, in which the front lobe longest. 
U.S.N.M., no, , type, 
6 examples, Basud River, Luzon, in fresh water. June 
15, 1909. Length 138 to 203 mm, largest type, others 
paratypes. 
Hemlramphus ( Zenarchopterus ) Caudovittatus 
WEBER, Nova Guinea, vol. 5, pt. 2, p, 229, 
pi. 13, figs, la-b, 1908 (type locality: 
mouth of Merauke River, New Guinea). 
