Steenstrupia (=Corymorpha) Identifier: pedigreeofmanoth00haec (
find matches)Title:
The pedigree of man : and other essaysYear:
1903 (
1900s)Authors:
Haeckel, Ernst Heinrich Philipp August, 1834-1919Subjects:
Man Evolution Man EvolutionPublisher:
London : A and H.B. BonnerContributing Library:
ASC - York University LibrariesDigitizing Sponsor:
York University - University of Toronto LibrariesView Book Page:
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view book online to see this illustration in context in a browseable online version of this book.Text Appearing Before Image:Fig. 44. Three Hydraform polyps (Corymorpha) fixed to the sea-bottom.Two of them are putting forth Medusiform buds (Steen-strupia), three of which have already become detached. are minute, lowly-organised, fixed polyps (Fig. 44) ;the second, fourth, sixth, eighth, on the other hand,are represented by large, more highly organised, free-swimming Medusae (Fig. 45). And, what is moreinteresting to us in this connexion, the latter have M 2 164 CELL-SOULS AND SOUL-CELLS. nerves, muscles, sense-organs, the former have in placeof these a delicate membrane, consisting of a layer ofneuro-muscular cells. Both generations have souls,both possess will and feeling. But, not unnaturally,the simple lower soul-life of the polyp does not rise to the height of the Medusa-soul; the latter has evolvedfrom the former and long after the former in the courseof time.Text Appearing After Image:Fig. 45. A Medusa (Steenstrupia) formed by gemmation from thepolyps of Fig. 44. The stomach, whence four canals run to the circumference of the disk, depends from the middle ofthe bell. On the circumference are placed four eyes, butonly one long tentacle. CELL-SOULS AND SOUL-CELLS. 1G5 In yet another significance is the notable class ofHydro-medusae of deepest interest for the comparativestudy of the soul. For from it the Siphonophora haveevolved, those swimming colonies of animals that areof extraordinary importance in the study of the phy-siological division of labor. The Siphonophora arefound swimming about on the smooth surface of warmseas, but only at certain times, and not in largenumbers. They belong to the inexhaustibly richwonder-world of Nature, and whoever has once hadthe good fortune to observe for any length of timeliving Siphonophora will never forget the gloriousspectacle of their marvellous forms and movements.Such a Siphonophoron is best compared to a swimmingflower-stNote About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.