FRESH- WATER FISHES OF SIAM, OR THAILAND 137 



The fish has a distinctive vernacular name by which it is always 

 known as fla kaho. 



Genus TOR Gray 



Tor Gray, The illustrations of Indian zoology, vol. 2, p. 9G, 1833-34. (Type, 

 Cyprinus tor Hamilton=Tor hamilton Gray.) 



The fishes of this genus are of medium to large size, with elongate, 

 moderately compressed body, rather small head, long rostral and max- 

 illary barbels, slightly inferior strongly curved mouth, thick continu- 

 ous lips, low^er lip with an uninterrupted posterior fold and with or 

 without a median lobe, large scales, complete lateral line, gill mem- 

 branes united to the isthmus, spoon-shaped pharyngeal teeth in three 

 series, and dorsal fin with a scaly sheath at its base and 8 or 9 branched 

 rays, the last simple dorsal ray osseous and nondenticulated. 



The generic name Tor, with Cyprinus tor Hamilton as its haplotype, 

 was used by Gray in 1833, thus antedating Riippell's Labeobarhus 

 (1837) by which name these well-marked fishes of the Asiatic main- 

 land and the Indo-Australian Archipelago have been designated by 

 Bleeker, Weber and de Beaufort, and others. Giinther (1868, vol. 7) 

 and Day (1878) retained these fishes in the multicomposite genus 

 Barby^. 



Four species are known from the rivers of Thailand, none peculiar 

 to the country, as follows: 



la. Lower lip with a median lobe. 



2a. Lobe of lower lip reaching a line connecting corners of mouth ; upper lip 



with a median lobe tambroides 



2b. Lobe of lower lip shorter, not reaching a line connecting corners of mouth ; 

 upper lip without a median lobe. 

 3a. Depth of body 3 to 3.2 in standard length ; length of last simple dorsal ray 



about equal to head douronensis 



36. Depth of body 3.75 in standard length ; length of last simple dorsal ray 



much shorter than head stracheyi 



Ift. Lower lip without a median lobe soro 



TOR TAMBROIDES (Bleeker) 



Figure 16 



Labeolartus tambroides Bijeeker, 1854 (106), p. 92 (Padang, Pajakombo, Solok, 

 Lacus Meninju, Sumatra; Tjampea, Buitenzorg, Tjipannas, Java). — Smith. 

 1931d, p. 183 (Petchaburi River, Tapi River). 



Barhus {Labeobarhus) tambroides Hora, 1924a, p. 471 (Tale Sap). 



Long known from Java, Borneo, and Sumatra, this fish in recent 

 years has been found in widely separated parts of Thailand, It seems 

 to be rare or imcommon wherever found in this country and is best 

 known in Petchaburi River, where it enjoys a high reputation as a 

 food fish, similar to that of Probarbus jullieni Sauvage in the Meklong. 



