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. Elementary zoology. Zoology. BRANCH ECHINODERMATA: STARFISHES, ETC. 125 preparing the trepang is almost entirely in the hands of the Malays, and every year large fleets set sail from. Fig. 23.—A sea-cucumber, Pentacta Jrondosa. (After Emerton.) Macassar and the Philippines to the south seas to catch sea-cucumbers. Feather-stars (Crinoidea).—The feather-stars or sea- lilies or crinoids (fig. 24), as they are variously called, differ from the other Echinoderms in having the mouth on the upper side of the central disc, and in the fact that all of the species are fixed, either permanently or for
. Elementary zoology. Zoology. BRANCH ECHINODERMATA: STARFISHES, ETC. 125 preparing the trepang is almost entirely in the hands of the Malays, and every year large fleets set sail from. Fig. 23.—A sea-cucumber, Pentacta Jrondosa. (After Emerton.) Macassar and the Philippines to the south seas to catch sea-cucumbers. Feather-stars (Crinoidea).—The feather-stars or sea- lilies or crinoids (fig. 24), as they are variously called, differ from the other Echinoderms in having the mouth on the upper side of the central disc, and in the fact that all of the species are fixed, either permanently or for a part of their life, being attached to rocks on the sea-bottom by a longer or shorter stalk which is composed of a series of rings or segments. The central disc is small and 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 Kellogg, Vernon L. (Vernon Lyman), 1867-1937. New York : H. Holt and company
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1902