Fighting Conch

[Delphinus]

Actually, fighting conches are more or less identical in size to strawberry's.

You're thinking of the queen conches, which when small look identical to fighters but get to be football sized.

However there are so many different species of conch though that get called one thing or another that it's probably a bit of a moot point. I think I've seen at least 6 distinct species imported as "fighting conch" ... they can't all be correct.