120 gangetic fishes. Order IV 



4th Species. — Trichopodus lalius. 



A trichopodus with the fin of the tail fan-shaped, and with 

 transverse red bars on the sides. 



This most beautiful fish is no larger than the third species, 

 and is of a green colour, with many transverse red bars on the 

 sides, and with a silver-coloured gloss on the breast and gill- 

 covers. The hinder fins are spotted with red. The eyes are 

 red with a dusky transverse bar. 



The head is blunt and unarmed, and the edges of the cheek- 

 bones are not indented. There are no teeth, except a rough- 

 ness on the jaws. The eyes are of a moderate size. The edge 

 of the foremost plate in each gill-cover is indented. The mem- 

 branes are concealed, each containing about four rays. 



There is no lateral line. 



The back fin contains sixteen prickles and eight branched 

 rays. The pectoral fins are low, and each contains nine rays. 

 The ventral fins reach to near the end of the fin behind the 

 veni, which contains eighteen prickles and fifteen branched 

 rays. In the tail fin there are sixteen distinct rays, with some 

 short compacted ones on each side. 



5th Species. — Trichopodus sota. 



A trichopodus with the edge of the tail fin slightly concave ; 

 and with the upper and hinder parts brownish red, and the 

 fore and lower parts silver-coloured, with a blue gloss. 



This fish seldom if ever exceeds an inch and a half in length. 

 Its upper and hinder parts are of a dusky reddish colour, very 

 faintly marked with longitudinal brownish lines. The lower 

 and fore parts are silver-coloured, with a blue gloss. The bo- 

 dy has many dots, but no considerable spot. The hinder part 

 of the vent fin is edged with red. 



