C. Ruburm Small 291×320 Medium 581×640 Large 930×1024 Download Tiff Original 2180×2400 | (654.5 KB) Description "Corallium rubrum, a corner of a colony. A., Anthocodia or retractile portion of a polyp; r.p., completely retracted polyp, with the verruca or calyx portion left protruding; C., coenenchyma; T., pinnate tentacles." -Thomson, 1916 Keywords anthocodia, calyx, coenenchyma, coral colony, Corallium rubrum, pinnate tentacles, polyp, verruca Galleries Corals and Sea Anemone Source: J. Arthur Thomson, M.A., LL.D. Outlines of Zoology (New York, NY: D. Appleton & Company, 1916)