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On the Crinoid Genus Scyphocrinus and its Bulbous Root Camarocrinus
Frank Springer
3 p., 74 p. illus., IX pl. (2 fold.) 33 cm.
Washington: Smithsonian Institution, 1917

About this work:
This paper, originally intended merely as an account of a remarkable discovery in 1912, having a decisive bearing upon the distribution and morphology of the genus Scyphocrinus, and its relation to the bulbous organism hitherto called Camarocrinus, has by force of repeated further acquisitions of material expanded into a memoir requiring for its illustration nine plates and numerous text-figures. The drawings for the plates were executed by Mr. Kenneth M. Chapman, now of Santa Fé, New Mexico, with his usual skill and fidelity. The text-figures have been prepared with much care by my assistant, Mr. Herrick E. Wilson, whose studies of the structural details have greatly facilitated the present explanation of the internal characters of the Camarocrinus bulbs. For the valuable aids thus contributed I wish to express to both these gentlemen my acknowledgment and appreciation.

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