Striolate Chiton

Striolate Chiton
Name: Striolate Chiton
Scientific Name: Ischnochiton striolatus
Family: Chitons
Taxonomic: Ischnochitonidae
ID Group: Snails, Clams & Shells
Size: up to 1 in.
Depth Range: Shorelines, Tidal pools (0 – 2 ft.)
Sightings: Seen often

The Striolate Chiton has an oval body with eight plates that display faint, wavy grooves arranged in a zigzag or chevron pattern. The outer edge of the body, called the girdle, is decorated with scales or threadlike textures. The colors of this chiton vary greatly, ranging from creamy white, gray, and brown to shades of orange, pink, green, purple, and black.

This Chiton is usually found alone on rocks in shallow coastal areas, where it clings tightly to the hard surface. It is often overlooked because of its small size and ability to blend in with its surroundings. The chiton feeds at night, scraping algae, microorganisms, and small invertebrates from the rock surface with a special rasping tongue called a radula. When dislodged, it can curl into a ball to protect its soft underside.