180 F. Day — Monograph of Indian Oyprinidce. [No. 3, 



but distinct. Colours, greyish, becoming dirty white along the abdomen. A 

 dark lateral band extends from the eye to the tail ; along its first half are 

 three black spots, whilst the whole extent of the back is irregularly lineated. 

 Mns, yellow. Dorsal with four black bands. Caudal with three bands and 

 a dark margin. A black mark at the base of the tail, with a smaller one 

 above and another below it. 

 Uab. — Madras. 



B. Without an erectile spine near the orbit. 

 Genus. 9. Nemacheiltjs, v. Hass. 

 Acoura and Acourus, Swains. 

 Acantliocobitis, Peters. 



Body elongated. Dorsal profile nearly horizontal. Barbels eight or 

 six, when the former number is present, the extra pair belongs to the 

 posterior nostril, none on the mandibles. No spine on the head. Dorsal 

 fin of moderate length, or short, situated opposite the ventrals. 



This genus has been subdivided into those species which have upwards 

 of twelve dorsal rays, (Acantliocobitis) , and those with less than twelve. As 

 this arbitrary division is not a natural one, it is not adopted here. Another 

 subdivision has been instituted into those in which the tail is forked, and 

 those in which it is entire. The genus may, however, be subdivided into 

 those with eight and those with six barbels. 



Geographical distribution. — Fresh waters of India, Ceylon, and Barma. 

 Synopsis of species. 

 A. With eight barbels. 



1. Nemacheilus JEvezardi, D. 2/7, A. 2/5. Greenish, with small dark blotches. 

 Puna (in the Dakhin). 



B. With six barbels. 



2. „ pavonaceus, D. 2/15, A. 2/5. Body barred ; caudal wedge-shaped. 

 Assam and Tenasserim Provinces. 



3. „ urophthahnus, D. 14, A. 7. Body with cross bands j caudal 

 emarginate, and with rounded angles. Ceylon. 



4. „ botia, D. 3/11, A. 2/5. Body irregularly blotched. Caudal emar- 

 ginate. Throughout India, except in the South. 



2 Q 



5. „ Bupelli, D. — -, A. 8. Sh&rt bars along the lateral line. Caudal 



emarginate. Pima, 



2 

 6* „ moreh, D. — , A. 7. Bars along the side of the body. Caudal 



wedge-shaped. Puna. 



7.* „ monoceros, D. 12. A. 6. Caudal and dorsal fins barred. Caudal 



rounded. Assam. 



8. „ aureus, D. 2/10, A. 2/5. Immature blotched ; caudal and dorsal 

 fins barred. Caudal forked. Jabbalpur. 



o 



9. ;, rupicola, D. — — , A. 2/5. Eleven to seventeen brown bands on 



