Chambers's Encyclopaedia, Volume 1: A to Beaufort, p. 500
Aspergillum, a remarkable genus of boring Lamellibranch Molluscs, in which the shell has the
A detailed scientific illustration of a Lamellibranch Mollusc, Aspergillum. The drawing shows a long, slender, slightly curved tube with a flared, circular base. The base is labeled 'a' and shows several small holes. The tube itself is labeled 'b' and has a textured, ribbed appearance. The illustration is a black and white line drawing.