Acanthochitona hemphilli (Pilsbry, 1893). Scanning electron images of a specimen from Agregacion Meros (CNMO4939, 36.5 mm length). A dorsal view of head valve (I), SB = 1 mm B dorsal view of tail valve (VIII), SB = 1 mm C dorsal view of tail valve (VIII), of specimen from Laguna Arrecifal (CNMO4997, 38 mm length), SB = 1 mm D detail of articulamentum of tail valve (CNMO4997), SB = 1 mm E dorsal view of intermediate valve IV (CNMO4939), SB = 1 mm F pustules detail of tail valve (VIII), SB = 100 μm G detail of pustules of intermediate valve IV, SB = 50 μm H detail of girdle spicules, SB = 100 μm I detail of girdle tuft, SB = 1 mm J detail of ventral spicules of girdle, SB = 0.50 mm K radular teeth, showing central and major lateral teeth, SB = 200 μm.