. Comparative zoology, structural and systematic : for use in schools and colleges. Zoology; Anatomy, Comparative; Physiology, Comparative. 212 COMPARATIVE Fig. 177.—Nauplius of Entornostracan (Canthocamptus). See Fig. 255. A, first an- tenna ; An, second antenna; a, anus; L, labrum; 0, ocellus; S, stomach. (From Brooks, after Hoek.) other words, the parent may find no resemblance to him- self in any of his progeny, until he comes down to the ; Thus, the Jelly-fish, or Medusa, lays eggs which are hatched into larvse resembling Infusoria— little transparent oval bo
. Comparative zoology, structural and systematic : for use in schools and colleges. Zoology; Anatomy, Comparative; Physiology, Comparative. 212 COMPARATIVE Fig. 177.—Nauplius of Entornostracan (Canthocamptus). See Fig. 255. A, first an- tenna ; An, second antenna; a, anus; L, labrum; 0, ocellus; S, stomach. (From Brooks, after Hoek.) other words, the parent may find no resemblance to him- self in any of his progeny, until he comes down to the ; Thus, the Jelly-fish, or Medusa, lays eggs which are hatched into larvse resembling Infusoria— little transparent oval bodies covered with cilia, by which they swim about for a time till they find a resting-place. One of them, for example, becoming fixed, develops rap- idly; it elongates and spreads at the upper end; a mouth is formed, opening into a digestive cavity; and tentacles multiply till the mouth is surrounded by them. At this stage it resembles a Hydra. Then slight wrinkles appear along the body, which grow deeper and deeper, till the animal looks like "a pine-cone surmounted by a tuft of tentaclesand then like a pile of saucers (about a dozen. 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 Orton, James, 1830-1877; Birge, E. A. (Edward Asahel), 1851-1950. New York : Harper & Bros.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectzoology, bookyear1883
