Hydroctena Small 320×238 Medium 640×476 Large 1024×761 Download Tiff Original 2400×1784 | (445.4 KB) Description "Hydroctena. A medusoid with suggestion of Ctenophore structure, but a true medusoid nonetheless. ab.o. Aboral sensory organ; T., retractile tentacle; v., velum; M., mouth; ST., stomach" -Thomson, 1916 Keywords ctenophore structure, hydroctena, jellyfish parts, medusoid Galleries Jellyfish Source: J. Arthur Thomson, M.A., LL.D. Outlines of Zoology (New York, NY: D. Appleton & Company, 1916)
