Adult matamatas, like this 10 incher, are darker in color than the hatchlings.I was walking and netting slowly in the shallows of the Rio Orosa (Amazonian Peru) hoping against hope to find young marbled swamp eels, Suriname toads, aquatic caecilians, or baby electric eels. So far I had found only a few tetra and cichlid species but it was getting late and I was getting tired. Lightning rent the sky and illuminated the towering cumulus clouds miles distant, closer to the Rio Amazonas. Another scoop produced a few more fish and a 3” long rock. Whoops. There are no rocks like that in the Amazon. I had scooped a baby matamata, Chelus fimbriatus, from the grassy shallows. And after 20+ years of scooping it remains the only one I have ever personally found.

There is no other turtle in the world that even approximates the appearance of the matamata. The mud-colored, rough textured, flattened, oblong, carapace bears 3 prominent keels. The plastron is small and provides virtually no protection to the underside of the limbs or neck. The neck is horizontally flattened and prominently fringed. The head is flattened, bears triangular temporal lobes, a snorkel like nose, small eyes, and a wide curved jaw. Neck and head are mud-brown dorsally. Ventrally the head and neck of adults (they can reach a length of 16”) are usually dark but young examples have a pinkinsh chin and 3 very pink, broad, throat stripes .

But enough words. The accompanying pix will better explain the overall appearance of this remarkable turtle. Enjoy.