SILURID2E. 
135 
2. Ailia affinis. 
Had. Himalayan streams. 
Char. Anal rays 60 to 61. 
Very similar to the first species, with which it seems 
likely that it may be identical. 
GENUS AILIICHTHYS. 
Char. Similar to Ailia, but destitute of ventral 
fins. 
1. Ailiichthys punctata. 
Hab. Punjab. 4 inches. 
Char. Anal rays 76 to 82. 
Upper surface of the head nearly black. A large 
black spot at the base of the caudal fin. 
GENUS PANGASIUS. 
Char. Adipose fin very short. Dorsal short, with a 
spine. Barbels slender, four ; one pair maxillary, one 
mandibular. 
1. Pangasius buchanani. 
This is a large fish, common in the large rivers and 
estuaries, growing to 3 or four feet in length. It is 
used for food, but is not considered of the best qua- 
lity. 
Char. Anal rays 31 to 34. 
Head granulated above. Dorsal and pectoral spines 
toothed on both edges. Barbels shorter than the 
head. 
