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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 lOO mm. [After Vaillant 

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



Nom. in dig. : Ukau (Bluu). 



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

 Baram river). 



27. Epalzeorhynchus Bleeker. 



(Bi.EEKER, Nat. Tijdschr. Ned. Indie IX. 1855, P- 270). 



Elongate, cylindrical. Dorsal and ventral profile slightly 



Fig. 93. Epalzeorhynchus kalloptcrus (Blkr.) X 'Hw 



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



Fig. 94. Anterior part of head of Epalzeorhynchus kallopterus (Blkr.J 



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; /// fringed upper lip. 



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



