Description | Zoological study, dorsal view of the intestine of the marine mollusc Cryptochiton stelleri, commonly known as the Gumboot chiton, at 1 3/8 magnification. From specimens supplied by the Turtox General Biological Supply House, Chicago and collected in California, USA.
Plate 23 from the paper 'The structure and function of the alimentary canal of some species of Polyplacophora (Mollusca)', by Vera Fretter, Transactions of the Royal Society of Edinburgh, vol.59 (1939), pp.119-164.
Not signed. Typed label pasted to the main drawing lower right with plate title and detailed key to the figure. Some pencilled instructions to the engraver are visible. |