# Mossy Chiton (*mopalia muscosa*) The Mossy Chiton is a fascinating creature that clings to rocks in the ocean. Its shell is covered in tiny, colorful algae that help it blend in with its surroundings! - **Category:** [Invertebrate](https://www.snappit.app/explore/categories/invertebrate) - **Rarity:** Common - **Danger:** 0/5 · No known danger - **Snaps:** 2 - **Habitat:** Coastal rocky shores and tide pools. - **Also known as:** Algae Chiton, Moss Chiton, Rock Chiton ![Mossy Chiton](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Chiton_and_sea_anemones_at_tide_pool.jpg&width=800) Photo: Brocken Inaglory, CC BY-SA 4.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Chiton_and_sea_anemones_at_tide_pool.jpg) ## Appearance The Mossy Chiton has an oval, flattened body covered by eight overlapping shell plates. These plates are often dull green, brown, or black, heavily textured with fine bristles and algae, making it appear mossy. This natural texture helps it blend perfectly with its rocky surroundings. ## Taxonomy - **Kingdom:** Animalia - **Phylum:** Mollusca - **Class:** Polyplacophora - **Order:** Chitonida - **Family:** Mopaliidae - **Genus:** Mopalia ## Interesting facts - Despite having eyes, chitons can 'see' light and dark with hundreds of tiny light sensors on their shells! - If flipped over, a Mossy Chiton can slowly right itself by wiggling its powerful muscular foot. - Its 'teeth' are among the hardest biological materials, containing magnetite, a magnetic mineral! - They can live in the same spot for many years, slowly grazing on the same patch of rock. ## Special abilities - **Super Suction:** Mossy Chitons can firmly grip rocks with a strong foot, which helps them resist powerful waves and predators. - **Living Armor:** It has eight articulated shell plates that overlap, allowing it to flex its body to fit tight crevices for safety. - **Rock Scraper Tongue:** Mossy Chitons have a radula, a ribbon-like tongue lined with incredibly hard teeth, to scrape algae off rocks. - **Rocky Camouflage:** Its textured, bristly shell grows algae, which helps it perfectly blend in with surrounding rocks, hiding from hungry birds. ## Measurements & details - **Length:** 5-10 - **Weight:** 5-30 - **Lifespan:** 5-15 - **Shell Plates:** 8 ## Diet & Feeding They munch on tiny plants and algae that grow on rocks, using their special scraping 'tongue'. - **Primary Foods:** diatoms, green algae, red algae, microscopic plants - **Foraging Method:** Grazing ## Ecological connections - **Eaten by:** [ochre sea star](https://www.snappit.app/explore/ochre-sea-star) (*Pisaster ochraceus*) — A common predator in tide pools. - **Eaten by:** red rock crab (*Cancer productus*) — Crabs may dislodge and consume chitons. - **Depends on:** ribbed limpet (*Lottia digitalis*) — Often shares rocky surfaces and food sources. - **Eats:** sea lettuce (*Ulva lactuca*) — Consumes this common green algae. ## Traits - [Solitary](https://www.snappit.app/explore/traits/solitary): Solitary animals live alone for most of their lives, only interacting with others for mating or parental care. - [Camouflaged](https://www.snappit.app/explore/traits/camouflaged): Camouflaged describes organisms that possess coloring or patterns that allow them to blend into their environment. - [Herbivorous](https://www.snappit.app/explore/traits/herbivorous): This trait characterizes organisms whose diet consists entirely or primarily of plant material. - [Aquatic](https://www.snappit.app/explore/traits/aquatic): Aquatic habitats encompass environments where organisms live predominantly in water, including oceans, rivers, lakes, and wetlands. - [Marine](https://www.snappit.app/explore/traits/marine): Marine habitats encompass all saltwater environments of the Earth's oceans, supporting an immense diversity of aquatic life. ## Collections - [Invertebrates](https://www.snappit.app/explore/collections/invertebrates) ## Safety **Danger:** 0/5 · No known danger No special safety notes yet. ## Frequently Asked Questions ### How to identify Mossy Chiton? Compare the overall shape, opening, spiral, ribs, hinge and surface sculpture. Beach shells often lose the colors and sharp edges they had on the living animal, so shape does most of the work. Seashell Identifier: upload a photo and compare the visible details. ### How long is Mossy Chiton? 5-10 ### How much does Mossy Chiton weigh? 5-30 ### How long does Mossy Chiton live? 5-15 ### What does Mossy Chiton eat? They munch on tiny plants and algae that grow on rocks, using their special scraping 'tongue'. ### Where is Mossy Chiton usually found? Coastal rocky shores and tide pools. ### How does Mossy Chiton hunt? Grazing ### What is the shell Plates of Mossy Chiton? 8 ## Where to spot - [Audubon Canyon](https://www.snappit.app/guides/places/audubon-canyon) — California, US · Nature Reserve - [Bodega Bay](https://www.snappit.app/guides/places/bodega-bay) — US · Natural Landmark - [Port Townsend Historic District](https://www.snappit.app/guides/places/port-townsend-historic-district) — Washington, US · Historic District - [American Camp - San Juan Island National Historical Park](https://www.snappit.app/guides/places/american-camp-san-juan-island-national-historical-park) — Washington, US · Park [View all places to see Mossy Chiton](https://www.snappit.app/guides/where-to-see/mossy-chiton) ## More Invertebrate - [Coral](https://www.snappit.app/explore/coral) - [Crab Spider](https://www.snappit.app/explore/crab-spider) (*Mecaphesa asperata*) - [Garden Spider](https://www.snappit.app/explore/garden-spider) (*Araneus diadematus*) - [Brown Recluse Spider](https://www.snappit.app/explore/brown-recluse-spider) (*Loxosceles reclusa*) --- Source: [Mossy Chiton: Facts & Places to See — Snappit](https://www.snappit.app/explore/mossy-chiton)