19. BAREU3. 119 



pointed, as long as or a little longer than the diameter of the eye, 

 which is less than one-fourth of the length of the head ; barbels 

 very small, especially the upper, which sometimes disappear entirely. 

 The origin of the dorsal fin is behind the vertical from that of the 

 ventrals, and a little nearer to the root of the caudal than to the end 

 of the snout. Coloration uniform. 



Java and Sumatra. 

 «, h. Adult. Java, 



c, d. Half-grown. Java. From Dr. lileeker's Collection. — Types 

 of B. koilometopon. 



I do not think that B. koilometopon is specifically different from 

 B. javaniciis. The specimen figured by Bleeker has the body con- 

 spicuously elevated, the pectoral extending beyond the base of the 

 ventral ; but this is much less the case in the second specimen, so 

 that it is even doubtfixl whether this form can be considered a con- 

 stantly distinct variety. 



75. Barbus alius. 

 D. 11. A. 7. L. lat. 32. L. transv. 8/7. 



The osseous dorsal ray is of moderate strength, its stiff portion 

 being as long as the head, without snout ; its serrature is very coarse, 

 so that its upper half is armed with onhj Jive very distant teeth. 

 There are four longitudinal series of scales between the lateral line 

 and the root of the ventral fin. Body strongly compressed, much 

 elevated, with its upper profile much arched, its depth hei^uj one-half 

 only of the total length (^without caudal); head of moderate size, its 

 length being contained thrice and two-fifths in the total (without 

 caudal ); snout obtuse, much shorter than the eye, the diameter of 

 which is one-third of the length of the head ; barbels shorter than 

 the eye ; cleft of the mouth obliquely ascending forwards, with the 

 jaws equal in length. The origin of the dorsal fin is nearer to the 

 root of the caudal than to the end of the snout, somewhat behind the 

 vertical from the origin of the ventral. Pectoral reaching slightly 

 beyond the root of the ventral. Caudal fin deeply forked. Colora- 

 tion uniform ; a large black blotch on the top of the dorsal fin. 



JSiam. 



a. Three and a half inches long. Purchased of Mr. Jamrach. 

 h-<l. Three inches long. From M. Mouhot's Collection. 



76. Barbus gonionotus. 

 Barbus gonionotus, Bleek. Virh. Bat. Gen. xxiii. Oost-Juva, p. 15. 

 PuntTu"*[ (I^arbodes) gonionotus, Bleek. Prodr. Cijpr. p. 231 ; or 

 Atl. Ichthyul. Cypr. p. 97, tab. 28. fig. 1. 



D. 11. A. 9. L. lat. 29-30. L. transv. 6/5. 

 The osseous dorsal ray is veiy strong, its stiff portion being as long 

 as the head ; its serrature is very coarse, the denticulations being fai- 

 apart. There are three and a half longitudinal series of scales be- 



