Barnacle Small 320×316 Medium 640×631 Large 1024×1010 Download Tiff Original 2400×2367 | (1.9 MB) Description The barnacle is a type of fixed crustacean. Keywords barnacle, crustacean, fixed Galleries Crustaceans Source: Amadeus W. Grabau A Textbook of Geology (Boston: D.C. Heath & Co., 1920) 317
