. Bulletin - United States National Museum. Science. FRESH-WATER FISHES OF SIAM, OR THAILAND 309 Fins: Origin of dorsal fin over origin of ventrals, a little closer to base of caudal fin than to tip of snout; rays iii,8, longest rays slightly more than half length of head; caudal fin moderately emarginate, somewhat shorter than head; anal rays ii,5, longest equal to longest dorsal rays; ventrals reaching anal opening, rays i,7; pectorals times as long as ventrals, in head, rays i,10. Coloration: General color pale creamy yellow; body with nine dark brown cross bands meeting over back,
. Bulletin - United States National Museum. Science. FRESH-WATER FISHES OF SIAM, OR THAILAND 309 Fins: Origin of dorsal fin over origin of ventrals, a little closer to base of caudal fin than to tip of snout; rays iii,8, longest rays slightly more than half length of head; caudal fin moderately emarginate, somewhat shorter than head; anal rays ii,5, longest equal to longest dorsal rays; ventrals reaching anal opening, rays i,7; pectorals times as long as ventrals, in head, rays i,10. Coloration: General color pale creamy yellow; body with nine dark brown cross bands meeting over back, equal to or wider than inter- spaces, three predorsal, two wholly or partly subdorsal, four postdorsal, together with a narrow jet-black cross band at base of caudal fin; top of head mottled, cheeks yellowish brown; dorsal fin with two large black spots at base, rays brownish, membranes hyaline; other fins â '"^^Irm-^^n^^s Figure 63.âNoemacheilus breviceps, new species: Type ( No. 117751). Drawn by Mrs. Alice C. Mullen. Type.âK specimen ( No. 117751), cm long, taken by H. G. Deignan December 26, 1936, in the Menam Mao, a tributary of the Menam Fang, an affluent of the Mekong, Northern Thailand. Remarks.âAt the place and time of capture of this specimen, the Menam Mao was a clear torrent at the foot of a mountain. The species is characterized by its comparatively short head, abruptly decurved snout, swollen cheeks, small eyes, short barbels, and pattern of coloration. Its relations with other local species are shown in the key. NOEMACHEILUS NICHOLSI H. M. Smith FlQUBE 64 Nemacheilus nicholsi Smith, 1933a, p. 53, fig. 1, pi. 1, fig. 1 (Pak Jong).âFowlek, 1934a, p. 105 (Bua Yai). Originally known only from a small mountain stream, tributary of the Menam Mun, near Pak Jong, Eastern Thailand, this fish has since been found at Bua Yai, also in Eastern Thailand. Two specimens and cm. long were taken in Lam Tong Lang, a tributary of the 590
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