186 BULLETIN 188, UNITED STATES NATIONAL MUSEUM 



dorsal slightly emarginate, rays iii, 8, last simple ray feebly denticu- 

 lated on its posterior edge; last branched dorsal ray 3.3 in head; 

 caudal slightly longer than head, forked for half its length, the lobes 

 pointed; anal rays iii, 5, longest 0.6 head; ventrals i, 8, somewhat 

 shorter than pectorals ; pectorals i, 14, 1.6 in head, not reaching ventrals. 

 Coloration : Silvery ; back and top of head olive ; scales of side with 

 an obscure dark basal spot ; a dusky-green area on opercle ; a narrow 

 blackish stripe immediately behind the head extending from upper 

 angle of gill opening to base of pectoral fin ; a jet black spot on caudal 

 peduncle involving the twenty-sixth to the twenty-ninth scales of 

 lateral line, about size of eye and shaped like the spade of playing- 

 cards, witli the stem directed forward ; fins plain. 



Figure 32.^ — Puntius sivius, new species: Type (U.S.N. M. No. 



Mrs. Aime M. Awl. 



119452). Drawn by 



Type. — The type and only know specimen (U.S.N.M. No. 119452), 

 5.9 cm. long, was taken by H. G. Diegnan on December 25, 1936, in the 

 Huey Melin, a branch of the Menam Mao, Northern Thailand. 



Remarks. — The Huey Melin at Ban Muang Sum where this fish was . 

 taken is a tiny, clear brook. \ 



The species belongs in the section of Pimtius having as local mem- 

 bers hramoides., jolamarki^ and sarana, characterized by 4 barbels, 

 complete lateral line with about 28 to 32 scales, 16 scales around the 

 caudal peduncle, last simple dorsal ray osseous and denticulated, and 

 5 simple rays in the anal fin. 



From all these, as well as from similar Burman and Indian species, 

 the present form is separable by its small, broad head and short, blunt 



