LITERATURE CITED 



Angelin, Nils Peter. 



1878. Iconographia crinoideorum in stratis sueciae siluricis fossilium, 62 pp., 

 29 pis. 

 Bather, Francis Arthur. 



1893. The Crinoidea of Gotland. Pt. 1: The Crinoidea Inadunata. Sven- 



ska Vet.-Akad. Handl., vol. 25, no. 2, 200 pp., 10 pis. 

 1900. The Echinoderma. Pt. 3 of E. R. Lankester's " A treatise on zoology ", 

 344 pp., 47 figs. 

 Jaekel, Otto. 



1918. Phylogenie und System der Pelmatozoen. Pal. Zeitschr., vol. 3, no. 

 1, pp. 1-128, 114 figs. 

 MtjLLER, Johannes. 



1858. tlber einige Echinodermen der Rheinischen Grauwacke und des 

 Eifeler Kalkes. Monatsb. Akad. Wiss. Berlin, phys.-math. Klasse, 

 1858, pp. 185-198. 



SCHULTZE, LUDWIG. 



1867. Monographie der Echinodermen des Eifler Kalkes. Denkschr. Akad. 

 Wiss. Wien, math.-nat. Classe, vol. 26, pt. 2, pp. 113-230, 13 pis. 

 Springer, Frank. 



1913. Cystoidea, Blastoidea, and Crinoidea, in Zittel-Eastman's "Text- 

 book of paleontology", ed. 2, vol. 1, pp. 145-243, figs. 228-346. 

 Wachsmuth, Charles. 



1896. Crinoidea, in Zittel-Eastman's "Text-book of palaeontology", vol. 

 1, pt. 1, pp. 124-177, figs. 219-291. (The same text and pagina- 

 tion are to be found in the edition of 1900.) 

 Wachsmuth, Charles, and Springer, Frank. 



1880. Revision of the Palaeocrinoidea. (Pt. 1: The families Ichthyocrinidae 

 and Cyathocrinidae.) Proc. Acad. Nat. Sci. Philadelphia for 1879, 

 pp. 226-378, pis. 15-17. (Authors' separate, pp. 1-153, pis. 1-3.) 



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U. S. GOVERNMENT PRINTINS OFFICE: 1914 



