1867.] MR. F. DAY ON INDIAN FISHES. 295 



Length of head nearly |, of pectoral jr, of base of dorsal ^, of 

 base of anal ^, of caudal a little above ^ of the total length. Height 

 of head i, of body :j, of dorsal fin g, of anal g of the total length, 



£l/es. Diameter 'f of length of head, L| diameter apart, 1 dia- 

 meter from end of snout. 



Profile more convex on the ventral than on the dorsal aspect. 



Cleft of mouth large, directed forwards and slightly upwards, ex- 

 tending posteriorly to beneath the middle of the orbit. The lower 

 jaw is received at its termination into a slight cmargination formed 

 by the junction of the intermaxillaries. The anterior surface of the 

 snout, and the sides of the intermaxillaries and of the lower jaw, 

 covered with large glands ; some also exist along the inferior surface 

 of the lower jaw. Nostrils at anterior superior angle of the orbit, 

 nearer to it than to the end of the snout, and divided from one an- 

 other by a membranous valve ; the posterior broad and patent, the 

 anterior semitubular. 



Fvis. Dorsal commences midway between snout and middle of 

 caudal fin, and opposite the anterior third of the ventral, extending 

 posteriorly to above the third anal ray. Caudal moderately emar- 

 ginate, lower lobe slightly the longest. Anterior extremities of 

 dorsal and anal fins the highest ; the former with a slightly convex, 

 the latter with a convex and concave margin. 



Scales moderately large, with from two to three raised lines on 

 each. The base of the dorsal scaleless, of the anal slightly scaled. 

 Two long free scales at the base of the ventral. Base of caudal scaled. 



Lateral line in single tubes on each scale ; it passes downwards 

 nearly to the abdominal profile, along which it runs parallel. 



Teeth. Pharyngeal teeth in three rows, curved, slightly hooked, 

 and pointed at their extremities, 5, 4, 2/2, 4, 5. 



Colours. Head purplish silvery, generally of a shade of grey 

 glossed with purple, becoming silvery white along the abdomen. 

 About fifteen vertical greyish silvery bands pass from the grey of the 

 back to nearly as low as the lateral line ; in the old males they are 

 more in the form of large oval spots. Fins greyish, the anterior extre- 

 mity of the dorsal and anal tipped with white. In a very few young 

 the body was marked with black bands in the form of the letter W. 



The old males differ so much from the young and the females as 

 at first to appear like different species ; in the latter the scales are 

 quite smooth, and but few glands around the jaws. Some of the 

 males, on the contrarj^, when full-grown, have from one to three 

 rough spots on each scale in the posterior half of the body, the 

 lateral line is indistinctly apparent, the caudal fin is comparatively 

 short, and its lower lobe considerably the longest. 



This species differs from the Barilius bakeri, being of a more 

 slender shape, whilst the jaws are surrounded by large glands, and, 

 instead of a few distinct oval or round spots along the lateral line, 

 it has fifteen distinct stripes. 



Fishes of this genus are invariably called Trout by Europeans. 



Hab. The Bowany and Seegoor Rivers, and the rapid streams 

 along the lower slopes of the Neilgherries. 



