@article{WRiMS:SourceID:192056, author = {Darwin, C.}, journal = {The Ray Society, London}, title = {A Monograph on the Sub-Class Cirripedia with Figures of All the Species. The Balanidae, (or Sessile Cirripedia); the Verricidae, etc., etc., etc. }, url = {https://ia600409.us.archive.org/30/items/monographonsubcl02darw/monographonsubcl02darw.pdf}, year = {1854} }