Figure 82. - Ventriculites simplex, Toulmin Smith. Section of the outer wall,
showing the structure of the silicious network of this sponge.
In: Thomson, Wyville. 1873. The Depths of the Sea. MacMillan and Co., London.
Image ID: expl3254, Voyage To Inner Space - Exploring the Seas With NOAA Collect Credit: NOAA Central Library Historical Collections
