Length 42 mm. Dorset, England. April 2017.
Cilia on the gills and mantle create an inhalent respiratory water-current (blue arrows) entering the pallial cavity wherever the girdle is raised slightly at the anterior. The current passes through the gills and then along the mantle cavity as an exhalent current to exit at the posterior where the girdle is slightly raised. See image 37 for related blood flow.

KEY ID FEATURES : 01 Acanthochitona fascicularis