. Corals and coral islands. Coral reefs and islands; Corals. 68 CORALS AND CORAL LSLANDS. 3. Pennatnla tribe, or Pennatulacea. These are com- pound Alcyonoids, that, instead of being attached to rocks or some firm support, have the base or lower extremity free from polyps and buried in the sand or mud of the sea-bottom, or else live a floating life in the ocean. Their forms are very various. In the Veretillum family (Veretillidae) they are stout and short club-shape. One of the species from Hong Kong is. C01'H()()X t , V., AND ;M STIMl'SONI, V shown in the figure on
. Corals and coral islands. Coral reefs and islands; Corals. 68 CORALS AND CORAL LSLANDS. 3. Pennatnla tribe, or Pennatulacea. These are com- pound Alcyonoids, that, instead of being attached to rocks or some firm support, have the base or lower extremity free from polyps and buried in the sand or mud of the sea-bottom, or else live a floating life in the ocean. Their forms are very various. In the Veretillum family (Veretillidae) they are stout and short club-shape. One of the species from Hong Kong is. C01'H()()X t , V., AND ;M STIMl'SONI, V shown in the figure on the left, with its polyps fully expanded, and the small figure represents one of the polyps enlarged. The third figure represents a polyp of another species, from Hong Kong, a true ^'eretillum, enlarged three diameters ; the specimens, obtained by Dr. Stimpson, and described by 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 Dana, James Dwight, 1813-1895. London : Sampson Low, Marston, Low and Searle
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Keywords: ., bookauthordanajame, bookcentury1800, bookdecade1870, bookyear1875
