Holothurian Spicules Small 320×260 Medium 640×520 Large 1024×832 Download Tiff Original 2400×1949 | (516.0 KB) Description "Spicules of Holothurians. The series 1-6 shows stages in the development of an anchor and a plate in a Synapta. The series A-E shows stages in the development of a wheel in Chiridota, a synaptid." -Thomson, 1916 Keywords chiridota wheel development, Echinoderm, Holothurian spicules, sea cucumber spicule, synapta, synaptid Galleries Sea Cucumbers Source: J. Arthur Thomson, M.A., LL.D. Outlines of Zoology (New York, NY: D. Appleton & Company, 1916)
