Hydromedusa
“Diagram showing possible modifications of persons of a gymnoblastic Hydromedusa. a, hydrocaulus (stem); b, hydrohiza (root); c, enteric cavity; d, endoderm; e, ectoderm; f, perisarc (horny case); g, hydranth (hydriform person) expanded; g’, hydranth (hydriform person) contracted; h, hypostome, bearing mouth at its extremity; k, sacciform gonophor (sporosac) springing from the hydrocaulus; k’, sporosac springing from m, a modified hydriform person (blastostyle): the genitalia are seen surrounding the spadix or manubrium; l, medusiform person or medusa; m, blastostyle.” — Encyclopedia Britannica, 1893
Keywords
Ectoderm, Endoderm, Enteric, Hydromedusa, Gymnoblastic, Hydrocaulus, Hydrohiza, Perisarc, Hydranth, HypostomeGalleries
Corals and Sea AnemoneSource
The Encyclopedia Britannica, New Warner Edition (New York, NY: The Werner Company, 1893)
Downloads
1521×2400, 538.5 KiB
648×1024, 82.4 KiB
405×640, 42.9 KiB
202×320, 15.7 KiB