. Elementary text-book of zoology. ACTINIA. Phylum Class Sub-Class Order III.âACTINIA. cceusnterata. scyphozoa. actinozoa. Hexactinia. 54.âActinia On the left is an expanded individual with viviparous young escaping from mouth. On the right is a partially contracted specimen. Actinia mesembryanthemum is a common marine organism found between tide-marks. It is, at least ex- Et ai ternally, axo-synnmetricand cylindricalin shapej â ^. when expanded it may be about two inches â long. The base or aboral end is attached to a foreign body, such as a rock, and the oral end has


. Elementary text-book of zoology. ACTINIA. Phylum Class Sub-Class Order III.âACTINIA. cceusnterata. scyphozoa. actinozoa. Hexactinia. 54.âActinia On the left is an expanded individual with viviparous young escaping from mouth. On the right is a partially contracted specimen. Actinia mesembryanthemum is a common marine organism found between tide-marks. It is, at least ex- Et ai ternally, axo-synnmetricand cylindricalin shapej â ^. when expanded it may be about two inches â long. The base or aboral end is attached to a foreign body, such as a rock, and the oral end has a ring of numerous short tentacles surrounding a '^2A peristome, in the centre of which is situated the mouth The exterior of the body is smooth and of various shades of brown and green, matching its surroundings The body often has particles of sand and fragments of shell adhering to it, which assist in hiding the animal. On stimulation the tentacles are withdrawn into the peristome, and the whole animal assumes a rounded and contracted form. So far. 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. Edinburgh, E. & S. Livingstone


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