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What catfish look like a irridescent shark but has a flat head and not active?

A channel cat?

Very hard to do this without a pic.

Nope,Blue channel cat is very common and the mouth portion isn't flat. Were talking about duckbill flat. Body is similar to irridescent w/ silver horizontal stripes. Not paroons or columbian sharks either.

shovel nose?

I found it......Ageneiosus It's description is a "large Catfish rarely seen in the hobby. They resemble the more common Iridescent Shark, but are less built for speed as evidence by the caudal fin. For obvious reasons the tank must be huge. Feed sinking meaty foods such as beef heart."

Thanks to all