. Elementary text-book of zoology [electronic resource]. Zoology. HYDRA. Ill CHAPTER XIII. CCELENTERA TA. I.âHYDRA. Phylum Class 45-- wLrii (M Hydra Viridis Two Buds agnified).. ccelenterata. Hydrozoa. Hydra viridis is a small fresh- Avater organism, which may attain a length of one-half inch, but is usually smaller. It is found in ponds and streams attached to water-weeds and is of a bright green colour. Hydra is axo-symmetric, hence we can distinguish merely an oral and an aboral end and axial and peripheral parts. \Vith the naked _ ^ , eye it can be seen that External J ^ . â , the body is
. Elementary text-book of zoology [electronic resource]. Zoology. HYDRA. Ill CHAPTER XIII. CCELENTERA TA. I.âHYDRA. Phylum Class 45-- wLrii (M Hydra Viridis Two Buds agnified).. ccelenterata. Hydrozoa. Hydra viridis is a small fresh- Avater organism, which may attain a length of one-half inch, but is usually smaller. It is found in ponds and streams attached to water-weeds and is of a bright green colour. Hydra is axo-symmetric, hence we can distinguish merely an oral and an aboral end and axial and peripheral parts. \Vith the naked _ ^ , eye it can be seen that External J ^ . â , the body is an elon- Characters. ^ , <⢠, c. ^ ^ gated cyhnder fixed at the aboral end. At the oral end there is a ring of tentacles, thin processes which radiate in all directions. In the centre of this ring is a small raised part, the peristome., upon which is situated the 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 Masterman, Arthur Thomas; Parsons, John Herbert, Sir, 1868-1957, donor; S. H. Lazarus (Firm); University College, London. Library Services. Edinburgh : E. & S. Livingstone
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1901
