FRESH-WATER FISHES OF SIAM, OR THAILAND 317 



Coloration: General color of back, sides, and head dtdl brown, 

 lighter on underside of head and body; body with 13 obscure dark 

 brown cross bands, slightly wider than interspaces, scarcely distin- 

 guishable from the color of the back and side, 5 predorsal. 3 subdorsal, 

 6 postdorsal. together with a narrow black band at base of caudal fin ; 

 dorsal rays dark green, interradial membranes pale yellow, a blackish 

 spot at base of anterior rays separated by a round yellowish spot from 

 the dark green area along the length of the dorsal base; caudal, anal, 

 and pectoral rays dark green, membranes pale ; rentrals with an indis- 

 tinct dark green median band involving the rays. 



Type and paratype~s. — The type, 7.9 cm, long, taken by the Harvard 

 Primate Expedition on Doi Angka. Xorthern Thailand, in April 1937 

 is at the Museum of Comparative Zoology. Paratype (U.S.X,M. No. 

 118439) is 7.1 cm. long. 



Remarha. — This species belongs in the local group composed of A". 

 reidL sexcauda. waUoni. and schvJtzi characterized by 10 to 18 dark 

 cross bands, complete lateral line, and short nasal tentacle. There are 

 no outstanding color marks except on the dorsal fin. The cross bands 

 are hardly discernible. Other characters that, in combination, seem 

 to distinguish the fish from related forms are the very broad, short 

 head ; obtusely rounded snout : shoit barbels ; projecting median part 

 of the upper lip covering a beaklike extension of the median part of 

 the upper jaw: and very short caudal peduncle with a strong carina- 

 tion on the upper edge formed by the backward extension of the caudal 

 fulcra. Wliile the median beaklike process of the upper jaw is found 

 in other noemacheilids, this feature is miusually prominent in the 

 present species. 



NOEMACHEILUS WALTONI Fowler 



Nemacheilus icaltoni Fowlee, 1937, p. 157, figs. 77-79 (Mepoon). 



This species is known from 3 specimens 10.2, 4.5. and 2.6 cm. long. 

 The 13 dark cross bands in the type (5 predorsal, 3 subdorsal, 5 post- 

 dorsal) are pecitliar in having narrow darker edges (possibly owing 

 to change in preservation). The smallest specimen (^Fowler's fig. 79) 

 cannot with certainty be regarded as conspecific, as the cross bands 

 differ materially from the type in ntmaber, position, and color. 



NOEMACHEILUS SCHULTZI. new species 

 FIGUBE 69 



Nei7iacheiJus riviiJicola (non Hora) Fowleb, 1934a, p. 107, fig. 58 iChiengmai. 

 Chiengdao, Metang. Huey Meka). 



Description. — Form rather slender: body compressed posteriorly, 

 cylindrical between dorsal fin and head : greatest depth of body 5.6 in 

 standard length; least depth of caudal peduncle equal to its length 



