Well the reason I first ruled out the L137 is cuz the eyes are super white and from what I can tell from your photos yours dont have the bright white eyes. But you tell me cuz you have the little guy right in front of you.
The difference between the two is where they were collected. They are both from Rio Tapajos so during the collection they could have just been combined. If it is a L137 or L139 the care should be the same. Just my .02 and good find btw!