ART. 7 NEW SIAMESE FISHES SMITH 13 



caudal, free margin deeply concave, the last ray produced; fourth 

 unbranched ray strong, osseous, bearing 8 very large teeth on its 

 posterior edge, its length somewhat more than head; caudal deeply 

 forked, the pointed lobes longer than head ; anal rays iii,5, the longest 

 0.8 head and reaching caudal, the posterior edge of fin deeply emar- 

 ginate; ventrals 0.8 head, reaching vent, their base separated from 

 lateral line by 2.5 scales, a large scale in axil; pectorals of same 

 length as ventrals. 



Color : Back reddish-brown, sides and under parts golden ; a very 

 distinct rounded greenish spot on side above pectoral base (disap- 

 pearing in formol) ; a dark area on opercle; dorsal fin pale greenish- 

 yellow, dark edged ; caudal pale green, margin dark, inferior part of 

 lower lobe yellow ; anal, ventrals, and pectorals bright orange. 



Type. — A specimen 12.5 cm. long from the Menam Chao Phya at 

 Chainad, Central Siam, January 5, 1925. Cat. No. 90295, U.S.N.M. 



Rennarks. — This is a w^ell-marked form characterized by large 

 scales, a very strong coarsely -serrated fourth dorsal ray, two pairs of 

 barbels, a complete lateral line, and brilliant coloration. In some of 

 its features the species resemble P. anchispo^nis from Borneo, but is 

 more elongate, has a less strongly arched dorsal profile, has fewer 

 scales surrounding the caudal peduncle and is of ver}'^ different color- 

 ation. P. sumatranus., from Siam, Sumatra, and Borneo, has no ros- 

 tral barbels, has an incomplete lateral line, and has 4 dark crossbands 

 on head and body. In the widely-distributed P. 7iotatiis the barbels 

 are longer, the dorsal margin is truncate, the fourth simple dorsal 

 ray is shorter, the anal is much shorter, the body usually has a round 

 black sj)ot under dorsal fin and another on caudal peduncle, and there 

 are other dissimilar features. 



This species is named in honor of Dr. Alexander Wetmore, assistant 

 secretary of the Smithsonian Institution in charge of the United 

 States National Museum. 



PUNTIUS STIGMATOSOMUS, new species 



Description. — Dorsal profile moderately arched ; depth of body 

 3.2 times in standard length, a little less than 4 in total length ; head 

 3.75 in standard length: eye equal to snout and interorbital space^ 

 and contained 3.25 times in length of head; mouth strongly arched, 

 subterminal ; a barbel at corner of mouth about equal to eye, no ros- 

 tral barbels; caudal peduncle broad, its depth about two-thirds its 

 length and more than 0.5 head; scales large, 26 in lateral line and 9 

 in transverse series, 4.5 rows being above the lateral line, and 2.5 

 rows between lateral line and base of ventrals, 10 predorsal scales, 12 

 scales around narrowest part of caudal peduncle; thin scales extend 

 from the body on the bases of the dorsal and anal fins and form a 

 sheath ; lateral line moderately decurved, the pores weakly developed. 



