Philip Henry Gosse, « On the Architectural Instincts of Melicerta ringens, an Animal of the Class Rotifera », The Transactions of the Microscopical Society of London, Londres, E. Newman, vol. III, 1852.

The caddis-worms, so familiar to anglers (the larvae of the Phryganeadae), collect little stones, shells and other extraneous bodies lying at the bottoms of streams, and fixing them with a glutinous fluid their mouths, from them into curious cylindrical cases.