FRESH-WATER FISHES OF SIAM, OR THAILAND 181 



Coloration : Plain, silvery white ; rays and membranes of dorsal fin 

 blackish distally ; caudal fin with a narrow black posterior edge, lobes 

 dusky ; other fins plain. 



Type. — A specimen in the Deignan collection (U. S. N. M. No. 

 119497), 5.6 cm. in total length, taken in July 1935 by A. R. Buchanan 

 and P. D. Harrisson, of Chiengmai, in the gorge of the Mechem, trib- 

 utary of the Meping in Northern Thailand. 



Reinarks. — This species belongs in the small group of local puntiids 

 characterized by 4 barbels and an osseous simple dorsal ray without 

 serrations, the other members of the group being P. paucisquamatus 

 and P. colemani. From the former the present species may be readily 

 separated by the more numerous scales (33 in lateral line as against 

 21, 12 predorsal scales as against 7, and 14 circumpeduncular scales as 

 against 12). From P. colemani, to which the resemblance is closer, 

 differences are in the much smaller mouth, shorter maxillary, more 

 numerous predorsal scales ; much less advanced position of the dorsal 

 fin as compared with Fowler's figure, markings on the dorsal and 

 caudal fins, etc. 



PUNTIUS WETMOREI H. M. Smith 



Puntius wetmorei Smith, 1931a, p. 12 (Menam Chao Phya). 



Known from a specimen, 12.5 cm, long, collected in the Menam Chao 

 Phya at Chainad, Central Thailand, January 5, 1925. The relations 

 of the species are shown in the preceding key. The principal features 

 are the large scales (23 or 24 in the lateral line), 12 scales around the 

 narrowest part of the caudal peduncle, 2 pairs of short barbels, last 

 simple dorsal ray osseous and bearing 8 large teeth on its posterior 

 edge, a conspicuous round green spot on each side above the base of 

 the pectoral fin, dark-edged greenish-yellow dorsal fin, and anal, 

 ventral, and pectoral fins bright orange. 



PUNTIUS LATERISTRIGA (Cuvier and Valenciennes) 

 FIGUBE 31 



Barhus lateristriga Cuviee and Valenciennes, 1842, vol. 16, p. 161 (Java). — 



FowLEE, 1934a, p. 122 (Nakon Sritamarat). 

 Puntius lateristriga Koumans, 1937a, pp. 63, 64 (Peninsular Siam). — Fowleb, 



1939, p. 72 (Trang). 



While long known from Java, Borneo, Sumatra, and other islands of 

 the Indo-Australian Archipelago as well as from Malacca, this fish 

 was first ascertained to inhabit Thai territory' in 1926, when R. Hav- 

 moller presented to the Siamese Bureau of Fisheries specimens col- 

 lected by him in October in a waterfall stream near Tung Song, 

 Peninsular Thailand. Subsequent collecting showed that the fish was 



590087—45— — 13 



