. Elements of comparative zoology. Zoology. ECHINODERMS. 283 the mouth is a circle of tentacles (in reality enormously developed ambulacra), and with these the animals obtain their food, which consists of small organisms living in the sand and in some instances of decaying animal FIG. 97.—Sea-cucumber (Cucumaria frondosa). From Emerton. Inside, the pharynx is surrounded by calcareous plates, the whole resembling slightly the lantern of the sea-urchin, but no teeth are ever developed. In most species the madreporite is inside the body, and in many the branchial trees (p. 277) become de
. Elements of comparative zoology. Zoology. ECHINODERMS. 283 the mouth is a circle of tentacles (in reality enormously developed ambulacra), and with these the animals obtain their food, which consists of small organisms living in the sand and in some instances of decaying animal FIG. 97.—Sea-cucumber (Cucumaria frondosa). From Emerton. Inside, the pharynx is surrounded by calcareous plates, the whole resembling slightly the lantern of the sea-urchin, but no teeth are ever developed. In most species the madreporite is inside the body, and in many the branchial trees (p. 277) become developed into large tree-like strnc-. 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 Kingsley, J. S. (John Sterling), 1854-1929. New York, H. Holt and Company
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