MatsP wrote:
Sturisoma nigrirostrum is listed as Ucayali, which is quite some distance, in most reasonable definitions of "distance", from Rio Branco, unless you are talking of a different one than the one branching to the north then east from the Rio Negro that joins the Amazon at Manaus...
Yes, it is a large distance, but that's not to say they aren't found all along the way. Alternatively, it may not be
S. nigrirostrum; was just a guess based on superficial similarity. It had a black snout.
MatsP wrote:Not convinced on the P. gibbiceps either - looks more "spotted" than I'd expect them to be.
Bear in mind these were very big ones, and do tend to look different from smaller ones in the trade. I think
P. gibbiceps is a complex of species, also.