Note the facial plates on this interesting turtle.
This big side-necked turtle, Peltocephalus dumerilianus, ranges in the Amazon and Orinoco drainages from Ecuador, Peru, and western Venezuela to Brazil. Once thought to have been extirpated from Peruvian waters, it has again been found in that country. The actual abundance there (as elsewhere) is not known.
It is monotypic within its genus, but is most closely related to the much better known Amazon River Turtles of the genus Podocnemis.
This appears to be a seldom seen Podocnemid turtle. Until you see it withdraw and fold its head sideways, its overall appearance is that of a “ginormous” mud turtle. The folding of the neck and its nonhinged plastron, however, are positive giveaways. It can reach a length of slightly more than 2 feet straight measure.
Carapacial color is gray to black. The plastron may be brownish or yellow. Limbs, tail legs, and neck are also dark. The dark head may have yellowish cheeks. The crown, cheeks, and jaws appear plated.
Very little is known about this understudied aquatic turtle, this despite it being an important food source for Amazonian families.
Up to 25 eggs have been reported for a clutch, but it is not known whether this species multi-clutches.
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