It grows to only 10–12 cm carapace length. A small (rarely >11.0 cm [4.3 in.] Carapace yellow brown to dark brown with small, black spots or streaks; relatively flattened on dorsum. Description. Common Names: Flattened Musk Turtle; Average Adult Size: 3.0–3.9 in (7.5–10cm) Lifespan: 50+ years; Average Price Range: n/a; As you may expect from the name the Flattened Musk turtle has a shell that is more flat rather than high domed. Hi The Flattened musk turtle, (Sternotherus depressus), is a species of turtle in the Kinosternidae family. A little turtle, S. depressus can have a straight carapace length of 7.5–10 cm (3.0–3.9 in) as an adult, with a record length of 11.4 cm (4 1 ⁄ 2 in). Fish and Wildlife Service, the flattened musk turtle is a threatened species of high conservation concern. The flattened musk turtle, Sternotherus depressus, is an aquatic turtle with a distinctly flattened carapace (upper shell), about 5 in (12.7 cm) long when fully grown.The carapace is dark brown to orange with dark bordered seams and a slightly serrated … The flattened musk turtle (Sternotherus depressus) is a small freshwater turtle that is rarely larger than 11 cm or 4.3 inches in size.The species is endemic to Alabama and restricted to the upper Black Warrior River Basin in west-central Alabama. It was in the 1980s when I first made a concerted effort to see a flattened musk turtle, Sternotherus depressus. It is found only in Northern Alabama. carapace length) freshwater turtle. They are typically brown in color with the head having a olive color with speckles on it. The Flattened Musk Turtle is one of North America’s smallest and rarest turtles. 9% of its probable historic range contains relatively healthy populations, and most populations are fragmented by extensive areas of unsuitable habitat. Endangered but everywhere: Flattened musk turtle. By Richard Bartlett Thu, May 7 2015 at 05:06. The ESA (Endangered Species Act) impacts turtle keepers in the prohibitions listed above. Black Warrior Waterdog and Flattened Musk Turtle Status Survey using Environmental DNA (eDNA) Continued Implementation of the Safe Harbor Plan for the Endangered Red-cockaded Woodpecker in Alabama Distribution, Abundance, and Health Assessment of the Gopher Tortoise (Gopherus polyphemus) in Alabama The flattened musk turtle (Sternotherus depressus) has an incredibly limited habitat. In fact according to the Union for Conservation of Nature, more than … Flattened musk turtle and hawksbill sea turtles are among the most threatened reptilian species in the US. 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