FRESH-WATER FISHES OF SI AM, OR THAILAND 



403 



Tyve and paratypes.-T\i^ type (U.S.N.M. No. 117754) 6.9 cm. long 

 was taken by A. R. Buchanan, of Chiengmai, June 20, 1935, m the 

 Metum, a small swift affluent of the Mechem, tributary of the Mepmg, 

 in Northern Thailand. H. G. Deignan collected at the same place 

 two others, 4.7 and 4.2 cm. long, paratypes (U. S. N. M. No. 119824) . 



Figure 89.—Glyptothorax huchanani, new species: Type (U.S.N.M. No. 117754). 

 Drawn by Mrs. Aime M. Awl. 



Remarks.— Yvom the described species of Glyptothorax from Thai- 

 land, India, and the Indo-Australian Archipelago, this form seems 

 to differ in the combination of a comparatively short body, moderately 

 elongate caudal peduncle, origin of the ventral fins under the last ray 

 of the dorsal fin, and striking and peculiar coloration: a sharply de- 

 fined narrow white stripe following the lateral line and a yellow but- 

 terflylike spot on the back at the front of the dorsal fin. 



It is a pleasure to name this species for A. R. Buchanan, of the 

 Borneo Company, Ltd., who in June, July, October, and November, 

 1935, made for H. G. Deignan small but valuable collections of fishes 

 from the Mechem and various tributaries thereof, from which no fishes 

 had previously been obtained for scientific purposes. 



GLYPTOTHORAX FUSCUS Fowler 



Glyptothorax fuscus Fowi^R, 1934a. p. 89, figs. 31-33 (Chantabun. Nakon Srita- 

 marat). 

 Fowler regarded this species, known from nine specimens from 

 Southeastern Thailand and Peninsular Siam, 5.5 to 7.9 cm. long, as 

 related to G. platypogon, of Java, Sumatra, and Borneo, differing m 

 proportions, longer nasal barbel, more backward extension of the base 

 of the anal fin, and coloration. The species agrees further with 



