Calliomorus. gangetic fishes. 133 



are fleshy ; the upper one is the longest, and is incurved, sharp, 

 and without bones ; the under one is blunt. There are no teeth, 

 except a very slight roughness on the jaws. I have not been 

 able to observe any nostril, unless it be concealed in a small 

 membrane proceeding from the upper jaw, and below the un- 

 der eye. The eyes are small. The gill-covers are flexible, and 

 move freely. Their membranes contain no rays. 



The lateral line, on the left side, is double ; the superior run- 

 ning near the back, and the inferior straight along the middle. 

 On the right the lateral line is bifid, with the branches separat- 

 ing wide, one running towards the back, and the other near the 

 belly. The vent is immediately behind the throat, inclining to- 

 wards the right, or under side. The scales are indented on the 

 edge, and adhere firmly. The tail is blunt. 



There are properly only two fins : one runs from the crown 

 of the head, round the tail, to the vent ; but the rays of the tail 

 fin are longer than those of the back and vent fins ; and thus the 

 three may be distinguished, although the fins of the back and 

 vent are joined to that of the tail for the whole length of their 

 last rays. There is only one ventral fin, which is very small, 

 and placed longitudinally towards the left side, opposite to the 

 vent. It contains four soft rays. 



XIII. Genus. — Calliomorus. 

 Fishes of the fourth order, with the head armed with spines, 

 but with the edges of its bones unindented ; with the body de- 

 pressed, and covered with scales ; and with two back fins. 



1st Species. — Calliomorus chaca. 

 A calliomorus with a spine before each eye, and with the 

 hinder bone of the gill-covers unarmed. 



If this fish be a distinct species from the Calliomorus indicus 



