57 



Nomen in dig. : Ikan teri (Djambi). 



Habitat: Sumatra (river Batang Hari : Djambi!); Borneo 

 (rivers Kahajan, Kapuas). 



6. Parachela Steindachner. 

 (STEINDACHNER, Sitzber. Akad. Wien LXXXIII. i8i, p. 404). 



Body C/ieta-like. Elongate, compressed, with trenchant ab- 

 dominal edge. Lateral line abruptly descending behind pectorals 

 to beginning of anal region. Scales of unequal size as in 

 Chela. Dorsal short, without spines, vertically situated behind 

 beginning of long anal. No ventrals. Gape of mouth directed 

 upwards. No barbels. Lower jaw with a knob-like protuberance 

 at the symphysis. Pharyngeal teeth in three rows, uncinate, 

 not denticulate (4.4.2 2.4.4). Development of shoulder girdle 

 as in subgenus Oxygaster of the genus Chela [After STEIN- 

 DACHNER). 



Distribution: Borneo, only a single species is known. 



i. Parachela breitensteini Steind. 



Parachela Breitensteinii Steindachner, Sitzber. Akad. Wien LXXXIII. 1881, p. 404. 



D. 9; A. 3.30; P. 12; L. 1. circa 60. 



Dorsal profile of head slightly concave, strongly ascending 

 immediately behind front, afterwards horizontal to dorsal. Lower 

 profile rapidly descending to below base of pectorals and 

 forming an angle with subsequent abdominal profile, which is 

 nearly straight. Height more than 3 ! / 3 , circa 4*/ 3 in length 

 with caudal. Head circa 4 1 / 2 . Eye circa 3, snout circa 3 ! / 2 , 

 interorbital space 3 3 / 5 in length of head. Origin of dorsal nearly 

 twice nearer to caudal than to end of snout, vertically situated 

 somewhat behind origin of anal. Anal long. Pectorals strongly 

 developed, their length 2 3 / 5 in length, reaching anal. Caudal 

 bifurcate, the lobes pointed, the lower one more so and longer 

 and stronger than the upper one. Scales unequal, the nuchal 

 ones, which reach to front, and the dorsal ones are small. A 

 silvery longitudinal lateral band. Each caudal lobe with a dark 

 intermarginal longitudinal band. Length 125 mm. [After 

 STEINDACHNER, not seen by us]. 



Habitat: Borneo (Teweh). 



