Common name: Burrow's chiton

General information

The Mucous Cowl Chiton, Cryptoplax larvaeformis, is a unique and fascinating species of polyplacophoran, or chiton, known for its distinct appearance and behavior. This species is characterized by its elongated, leathery girdle that extends beyond the eight articulated shell plates, giving it a somewhat slug-like appearance. The girdle is covered in fine hairs and can secrete mucus, which is thought to aid in protection and locomotion.

Chitons are known for their ability to cling tightly to hard substrates, and the Mucous Cowl Chiton is no exception. It uses its muscular foot to adhere to rocks and other surfaces, making it a challenge to dislodge. This species is nocturnal, often hiding in crevices during the day and emerging at night to feed.

Care

Caring for Cryptoplax larvaeformis in a home aquarium requires a well-established system with plenty of live rock and a stable environment. They are grazers, feeding primarily on algae and biofilm that grow on rocks and glass. It's important to ensure that there is a continuous supply of natural food sources in the tank for them to thrive.

Reproduction

Like many chitons, the Mucous Cowl Chiton has a separate-sex reproductive system, with males and females releasing sperm and eggs into the water column where fertilization occurs externally. The larvae are planktonic and will go through several developmental stages before settling onto a substrate and metamorphosing into the adult form.

Habitat

Cryptoplax larvaeformis is typically found in the intertidal to subtidal zones of rocky coastlines. They prefer cooler water temperatures and can be found in various parts of the Pacific Ocean, from Japan to the coasts of California. In the wild, they are often found in areas with strong water movement, which helps to bring food particles to them.