The image is a diagram of an anatomy of a male fiddler crab. The crab is shown in a side view, with its body and legs clearly visible. The body of the crab is black, with yellow spots on its head and legs. The legs are long and thin, and the claws are sharp and pointed.

The diagram is labeled with Chinese characters, which translate to "Anatomy of Male Fiddler Crab" in English. The text below the diagram explains that the crab has two minor claws, which are used to remove the remains of food, leaving them as feeding pellets on the body. The diagram also mentions that the male claws have a movable finger, which is a common feature of the fiddler crabs.