Bat star Bat star The bat star ("Patiria miniata"), also known as a sea bat, webbed star, and broad-disk star, is a species of sea star (also called a starfish) in the family Asterinidae. It typically has five arms, with the center disk of the animal being much wider than the stubby arms are in length. Although the bat star usually has five arms, it sometimes has as many as nine. Bat stars occur in many of colors, including green, purple, red, orange, yellow and brown, either mottled or solid. The bat star gets its name from the webbing between its arms,
Stichaster striatus these were sessile organisms. It was not found to engage in cannibalism of its own species or to feed on other species of starfish. Many individuals were found to have missing or regenerating arms. This is likely the result of attacks by the dominant predatory starfish in the region "Meyenaster gelatinosus" and "Luidia magellanica". Starfish with missing arms are likely to have a certain minimum size; this is because, if they are too small, they are entirely devoured by the predator which attacked them. Juvenile "S. striatus" are found among the holdfasts of the kelp "Lessonia nigrescens" or hiding in