99 



slightly shorter than that of dorsal. When laid back the anal 

 reaches the base of the caudal. Pectorals and ventrals subequal 

 and equal to length of head without snout. Pectorals nearly 

 reaching ventrals. Ventrals nearly extending to the anus, their 

 origin two scales behind origin of dorsal and separated by 

 2 ] / 2 scales from lateral line. Caudal forked, about equal to 

 length of head. Caudal peduncle about as long as high, sur- 

 rounded by 14 scales, 7 of which above the lateral line. A 

 dark vertical stripe above the root of the pectorals, covered 

 by the opercular flap. Scales dark at the edges, fins pale. 

 Length of the single specimen known 85 mm. [Type of the 

 species in the British Museum seen by us]. 

 Habitat:- Borneo (Baram district!). 



2. Rohteichthys Bleeker. 

 (BLEEKER, Ichth. Arch. Ind. Prodr. II. Cyprini, 1860, p. 395). 



Oblong, compressed. Abdomen compressed into a sharp 

 ridge between ventrals and anus, the scales of one side not 

 overlapping on the other. Dorsal fin short, with a strong 

 serrated spine, far behind ventrals, its base in a scaly sheath. 

 Anal very short, with not more than. 6 branched rays. Scales 



Fig. 41. Rohteichthys microlepis (Blkr.) X Vs- 



rather small, nuchal ones beginning far before operculum. 

 Lateral line running along the median line of the tail. Eyes 

 with a free orbital margin. Mouth strongly ascending. Upper 

 lip partly covered by the subtriangular anterior apex of the 

 praeorbital bone. No barbels. Pharyngeal teeth compressed, 

 ending in a spoonlike hook, 5.3.2 2.3.5. Branchial openings 

 ending below eye. 



