Habitat: Found on coral reefs and mangrove in Bocas del Toro. Distribution: Panama, the Pacific coast of Costa Rica and Guadalupe. Natural History Notes: This species was identified as Pyura lignosa in earlier literature. Depth: 0.5 m Characteristics: Individuals (4.0-5.5 cm long) have a leathery and wrinkled purple tunic. Siphons have four small lobes. The pharynx has six folds in each side. The hind intestine is swollen. The gonads are very long and on the right side is close to the endostyle.