There are a few cases when in home aquariums, appears offspring. Female false map turtles (Graptemys pseudogeographica) of the central United States, for example, are about 8 cm (3.2 inches) long and become sexually mature at two to three years. When the turtle's tail is extended, the male's vent, or anal opening, is beyond the posterior edge of the carapace.
Reproduction of the Matamata Turtle This rare reptile is ready to reproduce once it has reached sexual maturity. The mata mata turtle, mata-mata, or matamata (Chelus fimbriata) is a freshwater turtle found in South America, primarily in the Amazon River and its tributaries in Peru, Venezuela, Guiana, and Brazil. The mata mata turtle is a sedentary turtle with a large, triangular, flattened head. Diet: MATA MATA TURTLES feed primarily, upon live fish. The fact that in captivity they do not breed, it is a fact. But in nature, the mating season lasts from turtles all year round. Size: MATA MATA TURTLES can get up to 18" in length, and 33 lbs in weight. Males have thicker tails than females, as well as concave plastrons. It is the only existing species in the genus Chelus, making it truly unique.. Reproduction: The MATA MATA TURTLE will lay from one to two dozen eggs. Reproduction of the matamata turtle The breeding season of the matamata occurs once a year, with the advent of spring in the southern hemisphere. She does not guard the nest.
Matamata turtles exhibit some sexual dimorphism, or variation in appearance between male and female. Males and females come together to mate from the beginning of October to mid-December.
During the courtship process the males try to attract the females by spreading their limbs, rocking their head and sides with their mouths half open, in order to show the female that they are interested in her. In addition, they will eat amphibians, invertebrates (such as insects and crustaceans), small mammals, and birds.
Before mating, the male tends to extend its head repeatedly, opening and closing its mouth at the same time. Interesting Mata Mata Turtle Facts. As Matamata is still very little studied, and therefore its reproduction almost nothing is known. The age at which turtles first reproduce varies from only a few years to perhaps as many as 50, with small species typically reaching sexual maturity sooner.