Dall, 1889
The body is oval to elongate, rarely exceeding 60 mm in length. Valve dorsal surface sculpturing is variable but generally costate and reticulate, and divides the intermediate valves into lateral and central regions as a result of different orientations of the papillae. All valves have insertion plates, the head and tail valves have numerous notches, the intermediate valves have between one and three pairs of notches depending on the species. The insertion plates are not pectinated. The articulamentum produces well-developed sutural laminae on valves 2-8. The girdle is covered by scales, spicules and minute hairs and is fringed by bluntly pointed spines.
Source: Jones and Baxter, 1987.
The following subtaxa of this family occur in the region:
Genus Callochiton
Callochiton septemvalvis
Genus Ischnochiton
Ischnochiton albus
Genus Lepidochitona
Lepidochitona cinerea
Genus Tonicella
Tonicella marmoreus
Tonicella rubra