106 F. Lay — Monograph of Indian Cyprinida. [No. 2, 



without osseous ray. Anal rather elongated, (15 to 21 branched 

 rays). Pharyngeal teeth in 3 rows. Scales of moderate size. 

 Lateral line complete, concave. India, Burma and Ceylon. 



24. Chela, barbels. Mouth directed obliquely upwards, with 

 a strong knob at the symphysis. Dorsal fin moderately short (7 

 to 8 branched rays) without an osseous ray. Anal moderately 

 short or elongated (9 to 19 branched rays). Pharyngeal teeth in 

 2 or 3 rows. Scales of moderate or small size. Lateral line com- 

 plete or incomplete, concave. India and Burma. 



I. Genus Psilorhynchus, McClelland, PI. IX, fig. 1. 



Bach somewhat elevated, head moderately depressed : snout more or less 

 spatulate. l&uth transverse, small, inferior. lips entire, not continu- 

 ous, reflected from off both jaws, and studded with glands. Barbels absent. 

 Dorsal fin with few rays, commencing opposite the ventrals. Pectorals 

 horizontal, with their outer rags unbranched. Anal short. Scales of mo- 

 derate size, none on the chest. lateral line complete, continued direct 

 to the base of the caudal fin . 



In removing this genus from the group homalopterest^e, I must 

 observe that I have only had the opportunity of examining one of 

 the two known species, the P. balitora, H. Buch. apud McClelland, 

 and it does not appear at all impossible that the other, P. sucatio i H. 

 Buch., may be destitute of an air-bladder and would thus form a 

 distinct genus appertaining to the sub-family homalopterin^e. 



Geographical distribution. — Hill streams and rivers in Bengal and 

 Assam. 



Synopsis of Species. 

 1. P. balitora, D. -~^, A. f, L. 1. 33. Eeddish brown irre- 

 gularly marked with black. N. E. Bengal and Assam. 



*2. P. sucatio, D. 9, A. 7, snout much produced. JY. E. Bengal. 



1. PSILORHYNCHUS BALITORA, PL IX, f. 1. 



Cyprinus balitora, Ham. Buch., Pishes of Ganges, pp. 348, 

 394 : *Cuv. and Yal. Hist. Nat. des poissons, xvi, p. 451. 



Psilorhynchus variegatus, McClelland, Ind. Cyp. pp. 300, 430, 

 pi. 50, f. 2 (from H. B.'s MSS.). 



Psilorhynchus balitora, Gunther, Oatal. vii, p. 343. 



