ART. 7 XEW SIAMESE FISHES SMITH 7 



in interorbital space ; two pair of slender barbels, the rostral extend- 

 ing behind eye, the maxillary slightly beyond gill opening; least 

 height of caudal peduncle 2 in head ; no lateral line ; scales in lateral 

 series 31, in transverse series 9, 16 scales before dorsal, caudal 

 peduncle surrounded by 10 scales in its narrowest part; head pro- 

 fusely covered with tubercles probably indicative of the breeding 

 condition, one conspicuous oval patch of tubercles at outer angle of 

 lower jaw, with a linear patch inferior and posterior thereto, another 

 elongated patch below eye, and other tubercles above eye, on lower 

 lip, and on chin. 



Fins : Dorsal rays ii,7, origin of fin in advance of anal, over 14th 

 scale of lateral series, its height more than 0.5 head; cadual deeply 

 emarginate, as long as head ; anal raj^s ii,2, height of fin equal to dor- 

 sal; ventrals short, not reaching vent; pectorals shorter than head, 

 not reaching base of ventrals. 



Color: Back reddish, a median bluish stripe from occiput to 

 dorsal fin; top of head and muzzle bluish; side with a broad, dull 

 blue band which extends on opercle and is traversed by bright scarlet 

 lines as follows: a continuous straight stripe from upper end of 

 branchial opening to caudal base, becoming wider posteriorly; a 

 somewhat broader, wavy stripe beginning on sixth scale of lateral 

 series and extending to lower edge of caudal peduncle immediately 

 posterior to anal fin ; a short stripe between the above two, reaching 

 slightly further back than anal origin and decurved anteriorly; a 

 fourth interrupted broad stripe beginning at gill opening and run- 

 ning along the body above the base of anal fin; in line with the 

 upper margin of eye a line of vermiculations from head to a point 

 under dorsal fin; belly white; all fins dusky, the dorsal and caudal 

 with pale red edges, a diffuse bluish spot on the middle of the caudal 

 base, the anal with pale red rays. 



Type. — A male specimen 4.2 cm. long over all, 3.3 cm. to base of 

 caudal, collected in a pool in a hill stream on Koh Yao Yai, west 

 coast of Siam, March 4, 1929. Cat. No. 90289, U.S.N.M. 



Additional specimeTis. — There are 3 other specimens taken at the 

 same place and time, the largest a male 3.7 cm. long, the other ap- 

 parently females 3.3 and 3.5 cm. long. The male exhibits the same 

 nuptial tubercles as the type, and the other specimens show no such 

 organs. In all of these specimens the maxillary barbel extends well 

 behind the branchial opening. 



Remarks. — The species is somewhat like Danio alholineata (Blyth), 

 known from Burma, Penang, and Sumatra, which has an incomplete 

 lateral line and a single scarlet band which extends along the side 

 from the caudal base to a point under or slightly in advance of the 



