Didnt think L340's were black and white. My guess is L333.
Looks too big for an L340
It certainly has L340 characteristics (headshape) but I agree on the black and white not quite fitting the description for L340. Maybe it is a hybrid of the L333 and L340 :dk:
looks yellow/cream to me on my monitor not white, also pic could be a bit overexposed and/or fish could be stressed slightly?