. Bulletin - United States National Museum. Science. 140 BULLETIN 188, UNITED STATES NATIONAL MUSEUM fin 35-1-2, predorsal scales 9; circumpedimcular scales 12; rostral bar- bel equal to diameter of eye, maxillary barbel a third longer. Fowler reported a specimen, 5 cm. long, from the Metang, north of Chiengmai, presumably from the Meping; and two, 29 and cm. long, from Keng Sok, in the Southeastern Figure 17.— Tor soro (Cuvier and Valenciennes). Drawn by Nai Chote Suvatti; cour- tesy of the Thailand Government. A single specimen, cm. long, obtained by Deignan on October 22
. Bulletin - United States National Museum. Science. 140 BULLETIN 188, UNITED STATES NATIONAL MUSEUM fin 35-1-2, predorsal scales 9; circumpedimcular scales 12; rostral bar- bel equal to diameter of eye, maxillary barbel a third longer. Fowler reported a specimen, 5 cm. long, from the Metang, north of Chiengmai, presumably from the Meping; and two, 29 and cm. long, from Keng Sok, in the Southeastern Figure 17.— Tor soro (Cuvier and Valenciennes). Drawn by Nai Chote Suvatti; cour- tesy of the Thailand Government. A single specimen, cm. long, obtained by Deignan on October 22, 1936, from Huey Mekong Kha, a tributary of the Salwin at the base of Doi Mekong Kha, is referred to this species, otherwise not known from the Salwin. In the absence of a median lobe on the lower lip, in squamation, fin formulae, and in other characters it cannot be other- wise allocated. A double row of low, widely spaced tubercles extends from snout along cheek to under middle of eye. In the East Indies a length of nearly 1 meter is attained. Among the people on Kao Sabap, this fish bears the name pla pluang hin. Genus CYCLOCHEILICHTHYS Bleeker Cpclocheilichthys Bleekee (201), Nat. Tljdschr. , vol. 20, p. 431, 1859-60. (Type, Cyclocheiliclithys armatus Bleeker.) The fishes of this genus are numerously represented as to species in Thailand and some are abundant and an important element in the food supply of the people living along the larger rivers. The outstanding generic characters are: Mouth small, subinferior; lips entire and con- tinuous around corners of mouth; a continuous groove posterior to lower lip; barbels 4, 2, or none; head with numerous sensory folds in parallel groups; lateral line with less than 50 scales; 8 branched dorsal rays, last simple ray osseous and strongly denticulated. Some of the species are not sharply differentiated and are based on a combination of minor characters rather than on outstanding features such as are. Please note th
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