216 



or less than height of body, separated by u 12 scales from 

 occiput ; its origin opposite to 8th scale of lateral line. Anal 

 slightly or much emarginate, much lower than dorsal or equal 

 to it. Pectorals and ventrals subequal, about equal to length 

 of head. Ventrals nearly reaching anal or not so far. Caudal 

 deeply incised, the lobes acute, longer than head. A diffuse 

 brownish band from head to caudal; young examples with the 

 band inconspicuous but with a round brownish blotch at the 

 end of the lateral line. [Specimens of BLEEKER'S collection 

 and of the Dutch Borneo expedition in the Leiden Museum seen 

 by us]. Length 216 mm. 



Habitat: Sumatra (Lahat, Upper Langkat (Volz) ) ; Borneo 

 (middle and upper part of river Kapuas!). Malacca. 



22. Schismatorhynchus Bleeker. 



(BLEEKER, Natuurk. Tijdschr. Ned. Indie IX. 1855, p. 258 and 269). 



Elongate, compressed. Snout divided by a horizontal groove 

 in a thick prominent upper and a much longer and more 

 prominent lower part, both provided with large pores and 

 tubercles. Mouth inferior, large and crescentic. The pendulous 



Fig. 84. Schismatorhynchus heterorhynchus (Blkr.) X 



rostral fold entire, the upper lip adnate to and slightly pen- 

 dulous from the upper jaw, and prolonged hindwards. Lower 

 jaw very deep from outwards to inwards and covered with 

 a horny sheath; exteriorly truncate, interiorly deeply emarginate 

 in the middle, so that on each side a conical process protrudes 

 into the cavity of the mouth. Corner of mouth prolonged as 

 a kind of gutter, anteriorly formed by a prolongation of the 



