. Elementary text-book of zoology, general part and special part: protozoa to insecta. Animals. Fio. 168.—Group of uomatocysts at tli/j end of the tentacle of a Scyphid ma. 'X^KHEniJ- i-. ^ Stl which they stand Fig 1G9 —Longitudinal section tliiou;?li the uervo ring of Charybdea. i n connection '^~' ^®^®® ^^^^^ ^^ ^^° ectoderm; Gz, ganglion cells ; Nf, nerve fibres ; Stl, supporting lamella; E, entodenn cells. through pro- cesses of the sense cells. Amongst many Medusfe (Crasjyedota and Charybdea) we find a single or double nerve ring near the edge of the disc, while in the Polyps (Actinia), t
. Elementary text-book of zoology, general part and special part: protozoa to insecta. Animals. Fio. 168.—Group of uomatocysts at tli/j end of the tentacle of a Scyphid ma. 'X^KHEniJ- i-. ^ Stl which they stand Fig 1G9 —Longitudinal section tliiou;?li the uervo ring of Charybdea. i n connection '^~' ^®^®® ^^^^^ ^^ ^^° ectoderm; Gz, ganglion cells ; Nf, nerve fibres ; Stl, supporting lamella; E, entodenn cells. through pro- cesses of the sense cells. Amongst many Medusfe (Crasjyedota and Charybdea) we find a single or double nerve ring near the edge of the disc, while in the Polyps (Actinia), the nerve fibres have a more irregular distribution (fig. 169). CLASS I.—ANTHOZOA*=ACTINOZOA (_Comlpolyps). Polyps loith cesophageal tube and mesenteric folds, with internal generative organs {no medusoid sexual generation), usually with solid mesodermal calcareous skeleton. The polyps of the Actinozoa are distinguished from the polyps * Ehrenberg, " Beitrage zur pbysiologischen Kenntniss der Korallenthiere im Allgemeinen unci besonders des rothen ; Ehrenberg. " Uber die Natiir und Bildung der Korallenbanke," vl 5A. der Berl. Akad, 1832. Ch. Darwin,. 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 Claus, Carl, 1835-1899; Metcalf Collection (North Carolina State University). NCRS. London, Swan Sonnenschein
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectanimals, bookyear1892
