Anomalopus

Anomalopus is a genus of small, terrestrial crabs belonging to the family Pilumnidae. These crabs are native to the tropical and subtropical regions of the Americas, particularly in Central and South America. They are characterized by their small size, typically ranging from 1 to 2 centimeters in length, and their distinctive appearance, with a flattened body and a pair of large, curved claws.

Anomalopus crabs are known for their unique behavior, particularly their ability to "walk on water." This phenomenon occurs when the crab's body is fully submerged in water, and it uses its powerful claws to propel itself across the surface. This behavior is thought to be an adaptation to escape predators or to move between bodies of water.

The genus Anomalopus includes several species, each with its own unique characteristics. For example, Anomalopus scorpioides is known for its bright red coloration, while Anomalopus spinosus is distinguished by its spiny carapace. Despite their small size, Anomalopus crabs play an important role in their ecosystems, serving as a food source for various predators and contributing to the overall biodiversity of their habitats.