. A manual of zoology. '74 MANUAL OF ZOOLOGY surface, in some forms (such as the worm-like Synapta and its allies) tube-feet are entirely Fig. 97. — Cucumaria planci. Entire animal seen from the ventral surface, with the tentacles expanded, and the tube-feet projected outwards. (From Hertwig's Lehrhuck, after Ludwig.) 5. THE CRINOIDEA The Feather-stars and their allies constituting the class Crinoidea, bear some superficial resemblances to the star- fishes and brittle-stars, but with some important points of difference. The body of a feather-star (Fig. 98) is star- shaped, with a cent
. A manual of zoology. '74 MANUAL OF ZOOLOGY surface, in some forms (such as the worm-like Synapta and its allies) tube-feet are entirely Fig. 97. — Cucumaria planci. Entire animal seen from the ventral surface, with the tentacles expanded, and the tube-feet projected outwards. (From Hertwig's Lehrhuck, after Ludwig.) 5. THE CRINOIDEA The Feather-stars and their allies constituting the class Crinoidea, bear some superficial resemblances to the star- fishes and brittle-stars, but with some important points of difference. The body of a feather-star (Fig. 98) is star- shaped, with a central disc and five arms which are bifurcate. 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 Parker, T. Jeffery (Thomas Jeffery), 1850-1897; Haswell, William A. (William Aitcheson), 1854-1925. New York, The Macmillan Company; London, Macmillan & Co. ,Ltd.
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