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Echinodermata
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Description: "A class of radiate animals, the highest in organisation of the great division of the animal kingdom. They have a digestive and a vascular system; for the former, however, there is in many of them only a single orifice; a circular and radiating nervous system has been observed in manyl they are especially characterised by their well-organised skin which in many is strengthened by calcareous plates, and in some also has the additional protection of numerous long spines. a, Asterias Tesselllata (Asteriadae); b, Spatangus (Echinidae) or sea-egg." — Chambers' Encyclopedia, 1875
Source: Chambers's Encyclopedia (Philadelphia: J. B. Lippincott Company, 1875)
Keywords: Echinodermata, sea-egg, asterias, tessellata, spatangus,
Copyright: 2003, Florida Center for Instructional Technology. See license.
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Clipart ETC is a part of the Educational Technology Clearinghouse and is funded by a grant from the Florida Department of Education, Office of Educational Technology. Produced by the Florida Center for Instructional Technology, College of Education, University of South Florida.