Shell Structure

One distinguishing feature of the Florida softshell turtle (Apalone ferox) compared to other turtle species is its shell structure. In contrast to the hard, bony shells of other turtles, the carapace, or shell, of the softshell turtle has a distinctive texture and composition, as the name implies.

Florida softshell turtles have extended, flat carapaces that look like pancakes or a supple leather saddle. Because of its flatter body, turtles are able to swim with more efficiency, less resistance, and greater agility. Its unusually smooth feel is due to the absence of the hard keratinous scutes that cover the shell of other turtle species and the presence of thick, leathery skin instead.

The Florida softshell turtle's skin may be delicate, yet it serves to protect and support the turtle's internal organs. A sequence of bones and cartilage compose a strong structure, providing structural integrity and stability, under the leathery covering of the shell. The softshell turtle's shell may not be as tough as some other turtles', but it may still protect the turtle from predators and environmental dangers by withstanding moderate pressure.

The Florida softshell turtle's shell has unique features that help it adapt to its semi-aquatic habitat. In order to hide from predators and blend in with their sandy or muddy habitat, turtles often have serrated or scalloped edges on their shells.

In addition to being able to burrow into the substrate and hide from predators, the turtle's soft and pliable shell further improves its chances of survival in the wild.

The plastron, the underside of a softshell turtle's shell, is structurally distinct from that of any other turtle. The plastron is not hinged as other turtle species' shells are, but it is flat and flexible enough that the turtle may completely withdraw its head and limbs within the shell when it needs to be protected. The turtle's capacity to swim and move about on land depends on its suppleness.