It's a bit difficult to see features on this picture, but I think that this is one of the armour-plated catfish. If you took this photo in South America (Guyana or Trinidad, perhaps), I would guess at the fairly widespread Hoplosternum littorale - the Smithsonian has a page on this because it is also an introduced species in Florida http://www.sms.si.edu/irlspec/hoplosternum_littorale.htm. It looks as though you took this in a fish market?
I've got a message from another Museum expert who agrees with the ID. Hoplosternum littorale seems the most likely ID for the photo, as far as fishes can be identified from photos. For more information about this species, please read the Wikipedia article here:
Thank you for the information. I'm now just curious if the species can be found in Malaysia, a tropical south-east Asia country with climate similar to South American countries? This is because the photo I attached could be taken in Malaysia. No where on the internet says that this species can be found in that part of the world.
Thank you again.
Thank you for the information. I've done a quick search online since and yes indeed, it does very much looked like one of the Hoplosternum Littorale species. As for the photo, I did not snap it. Interestingly, my son got it from a Malaysian friend of his. Though from the most of the information it seems the fish can only be found in the South Americas region. Malaysia being a tropical country, could it be possible Hoplosternum Littorale can be found there as well? From what I know, catfish thrives in the rivers and still water areas (paddi field canal) of Malaysia and Malaysian eat them. I will try to investigate some more about th source of the photo.
Thank you again, I'm sure my son will be very thrill to know this after he comes back from school today.
I live in Suriname. This fish a local delicacy in my country.