. Comparative zoology, structural and systematic. For use in schools and colleges. Zoology. YiG. 97.—Strncture of Sea-urchins' Spines: 1, a, spine of Cidaris cut longitudinally ; t, s, ball and socket joint; p, pedicellaiiae; 2, 3, transverse sections of spines of Cidaris and Echinus. cles bearing movable spines. The narrow zones (called ambulacra, as they are likened to walks through a forest). 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
. Comparative zoology, structural and systematic. For use in schools and colleges. Zoology. YiG. 97.—Strncture of Sea-urchins' Spines: 1, a, spine of Cidaris cut longitudinally ; t, s, ball and socket joint; p, pedicellaiiae; 2, 3, transverse sections of spines of Cidaris and Echinus. cles bearing movable spines. The narrow zones (called ambulacra, as they are likened to walks through a forest). 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 Orton, James, 1830-1877. New York, Harper and brothers
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Keywords: ., bookcentury1800, bookdecade1880, bookpublishe, booksubjectzoology
