FRESH-WATER FISHES OF SIAM, OR THAILAND 103 



characters. Three species are reported from Thailand, distinguished 

 as follows : 



la. Pectoral fins extending far beyond base of ventrals ; a longitudinal series of 

 blackish brown spots extending from head to base of caudal fin ; a dark band 

 across dorsal and anal fins ; median and submarginal dark longitudinal 



bands on caudal fin spilopleura 



1 &. Pectoral fins extending to base of ventrals ; a black or dark brown looigitudinal 

 band on side of body, 

 2a. A black band from snout to base of caudal fin (band may be made up of 

 spots in young) an inframarginal black band on each caudal lobe ; origin 

 of dorsal fin over twenty-third or twenty-fourth scale of lateral line ; base 

 of last dorsal ray over base of fourth or fifth branched anal ray ; narrow- 

 est part of peduncle surrounded by 12 scales setigerum. 



2&. A dark band from head to base of caudal fin, extending on median caudal 

 rays to their posterior end ; no inframarginal dark band on each caudal 

 lobe; origin of dorsal fin over twentieth or twenty-first scale of lateral 

 line ; base of last dorsal ray over base of first or second branched anal ray ; 

 narrowest part of caudal peduncle surrounded by 16 scales bleekeri 



LUCIOSOMA SPILOPLEURA Bleeker 



Luciosoma spilopleura Bleekeb 1855 (136), p. 265 (Lahat, Sumatra). 

 Luciosoma {Luciosoma) spilopleura Bleekek, 1865 (356), p. 176 (Siam), — 

 Saxtvage, 1881, p. 164 (Siam and Sumatra). 



Long known from Borneo and Sumatra, this species was recorded 

 also from Thailand by Bleeker in 1865. There has been no other pub- 

 lished reference to the fish in Thailand except Sauvage's, probably 

 after Bleeker, and it must be very rare in that country. Two speci- 

 mens, 24.5 cm. long, taken February 15, 1928, in Tonburi, Bangkok, in 

 a pond connected with the Menam Chao Phya agree in most structural 

 characters with Bleeker's description but show some color differences 

 from his description and plate; th6y are noteworthy because of a 

 broad leaf -like expansion of the upper and lower lips. 



LUCIOSOMA SETIGERUM (Cuvier and Valenciennes) 



Barbus setigerus Cuvieb and Valenciennes, vol. 16, p. 203, pi. 469, 1842 (P6bak 



River, Java). 

 Luciosoma setigerum Hora, 1923b, p. 153 (Bangkok, Nontaburi). 

 f Luciosoma liarmandi Fowleb, 1935a, p. 110, fig. 45 (Bangkok). 



This common species of Java, Borneo, Sumatra, and Malacca was 

 first shown to be an iaihabitant of Thailand by Hora in 1923. The 

 writer's own collections, beginning in 1923 and continuing through 

 1934, showed this fish to be widely distributed and at certain places 

 and times abundant. Localities represented by the collections made 

 for the Siamese Bureau of Fisheries are Bangkok, Nontaburi, Hang- 

 kraben, and Paknampo in the Menam Chao Phya ; Chiengmai in the 

 Meping ; in the lower Menam Nan ; at Chiengrai in the Mekok ; and 



