Acanthopleura
Acanthopleura is a genus of chitons, a group of marine mollusks known for their eight overlapping shell plates. These chitons are found in the intertidal zone and subtidal areas of the Pacific Ocean, particularly in the Eastern Pacific. They are characterized by their distinctive, roughened shells, which are often covered in spines or tubercles.
Common Names
Common names for species within the genus Acanthopleura include:
- Spiny chiton
- Rough chiton
- Bristle chiton
Characteristics
Acanthopleura chitons are generally small to medium-sized, with most species reaching lengths of 2 to 5 centimeters. Their most notable feature is their heavily sculpted shell, which is covered in numerous spines, tubercles, or granules. The girdle, which is the fleshy band surrounding the shell, is also often covered in spines or bristles. These chitons are typically found in a variety of colors, including brown, gray, black, and green. Some species can even exhibit bright orange or red coloration.
Environments
Acanthopleura species prefer rocky intertidal and subtidal habitats, often residing in areas with strong wave action. They are typically found clinging to rocks or algae, using their strong foot for attachment. Their roughened shells provide camouflage and protection from predators.