George wrote:
> My question is whether "white tuna" is traditional Japanese and what
> would it be called if it is? I searched a bit on the web where it was
> only referred to as white tuna.

It is albacore tuna, and called bincho maguro or shiro maguro.
It is very tender, a pinkish color, and rich flavor. I do not think
it is a traditional item, but it is becoming available all over.

--
Dan