tongaloa wrote in message ...
But what kind/species shark tastes enough like scallops that they can
pass it off along with the wheel and real scallops?

I say it's an urban myth.
I've eaten a lot of different shark/skate/ray meat and none of it is
even close to scallops. Yes, as with most seafood, the best is
eaten live and fresh from the sea. Have to watch those parasites though.
Liver flukes, fish tapeworm, ...Live crab is tasty but man, do you ever
want to know it's history!

Knowing what crabs eat, it's a wonder they're palatable at all. As I
understand it, the giveaway with fake scallops is the grain. Real
scallops are structured like an onion slice, with concentric and
radial grain. Plugs punched out of a slab of shark or ray have grain
that runs across from side to side. Or so I'm told. We don't get a
whole lot of fresh seafood here in Minnesota, apart from Northern
Pike. You want anything else, you have to buy it a plane ticket.