Unique Shells • Earth.com Unique Shells

Interestingly, their location wasn’t the only difference between these two distinct species. The original Chelus fimbriata species apparently has a shell that is rectangular in shape and it has dark coloring on its underside. Meanwhile, experts have noted that the Chelus orinocensis has an unpigmented plastron and an oval carapace. Photo Credit: Unsplash / David Clode

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