22 9 



dorsal equal to height of body. Ventrals surpassing anus, their 

 origin opposite to the first third of the dorsal. A broad deep 

 slaty-dusky band enclosing lateral line from eye to base of 

 caudal. A brownish streak on upper and lower caudal rays. 

 Fins more or less dusky. Length about 100 mm. [After VAILLANT 

 and his type specimen in the Leiden Museum, seen by us]. 



N o m. i n d i g. : Ukau (Bluu). 



Habitat: Borneo (river Bluu!, tributary of river Mahakam, 

 Baram river). 



27. Epalzeorhynchus Bleeker. 



(BI.EEKER, Nat. Tijdschr. Ned. Indie IX. 1855, P- 2 7)- 

 Elongate, cylindrical. Dorsal and ventral profile slightly 



Fig. 93. Epalzeorhynchus kallopterus (Blkr.) X 9 /io- 



convex. Snout obtusely rounded, prominent, with a free moveable 



ut, 



Fig. 94. Anterior part of head of Epalzeorhynchtis kallopterus (Blkr.) 



partly seen from below, a maxillary, b rostral barbel ; c moveable lateral lobe ; 



d demarcation between snout and upper lip; / frenulum between lips; 



Ij lower jaw ; // lower lip ; ul fringed upper lip. 



lateral lobe, the base of which is formed by bone. No pen- 



