The sweep at the rear of the wing into the fuselage is wrong for a Dauntless. I am trying to find US aircraft in my collection of ID drawings and can't find any to match. I think it is Japanese.
I tend to agree...it does look Japanese because we didn’t have any floatplanes like that one. I just don’t know which one, the Japanese (as might be expected from an island country) had a lot of floatplane variants, and I don’t know them that well. Yes, I am parochial in this type of thing...:)