I caught him in Sri Lanka in Maravilla. From the shore. The size is not more than 30 cm.
The locals don't know a more accurate name.
![Image](http://s017.radikal.ru/i404/1602/f2/04656097f27a.jpg)
![Image](http://s017.radikal.ru/i411/1602/1f/f224d7ef2341.jpg)
![Image](http://s019.radikal.ru/i606/1511/f5/483119c0aa59.jpg)
![Image](http://s020.radikal.ru/i714/1511/b6/443b4f04884b.jpg)
![Image](http://s017.radikal.ru/i413/1602/c2/77000fb879f5.jpg)
P.s.: Your help, as I can't find the answer.
If you need photos larger size and quality can provide! Thank you!
P.s.s: I guess this is what Arius maculatus but I'm not sure...