462 ROBERT TRACY JACKSON ON ECHINI. 



Clark, A. H. 



1909. The affinities of the Echinoidea. Amer. Nat., vol. 43, p. 683-686. 

 Clark, H. L. 



1907. The Cidaridae. Bull. Mus. Comp. Zool., vol. 51, p. 163-230, pi. 1-11. 

 Clark, H. L. See Agassiz, Alexander, and Clark, H. L. 

 Clark, W. B. 



1893. The Mesozoic Echinodermata of the United States. U. S. Geol. Surv., Bull. 97, p. 1-207, pi. 1-50. 

 Cotteau, Gustave. 



1875-'80. Palaeontologie Francaise, vol. 10, pt. 2, p. 1-960, pi. 263-520. 

 Cummings, E. R. See Beede, J. W., 1906. 

 Desor, Edouard. 



1858. Synopsis des echinides fossiles. Paris, Wiesbaden: p. i-lxviii, 1-490, pi. 144. 



Desor, Edouard. See Agassiz, Louis, and Desor, Edouard. 







Doderlein, Ludwig. 



1887. Die Japanischen Seeigel. Stuttgart: p. [1-4], 1-59, pi. 1-11. 



1906. Die Echinoiden der deutschen Tiefsee-Expedition. Wissenschaftl. Ergebn. Deutsch. Tiefsee- 



Exp. " Valdivia," vol. 5, pt. 2, p. 61-290, 46 text-figs., pi. 9-50. 

 Dollo, Louis, and Buisseret, A. 



1888. Sur quelques palechinides. Compt. Rend. Acad. Sci. Paris, vol. 106, p. 958-960. 

 Dujardin, M. F., and Hupe", M. H. 



1862. Histoire naturelle des zoophytes echinoderms. Paris: 627 pp. 

 Duncan, P. M. 



1885. On the structure of the ambulacra of some fossil genera and species of regular Echinoidea. Quart. 



Journ. Geol. Soc. London, vol. 41, p. 419^53, 25 text-figs. 

 1885a. On the perignathic girdle of the Echinoidea. Journ. Linn. Soc. London, Zool., vol. 19, p. 179- 



212, pis. 30, 31. 



1889. On some points in the anatomy of the species of Palaeechinus (Scouler), M'Coy, and a proposed 



classification. Ann. Mag. Nat. Hist., ser. 6, vol. 3, p. 196-206, 10 text-figs. 

 1889a. A revision of the genera and great groups of the Echinoidea. Journ. Linn. Soc. London, Zool., 



vol. 23, p. 1-311. 

 Eichwald, Edouard von. 



1841. Die Thier- und Pflanzenreste des Alten Rothen Sandsteins und Bergkalks im Novogrodschen 



Gouvernement. Bull. Sci. Acad. Imp. Sci. St. Petersbourg, vol. 8, p. 78-91. 

 1854. Die Grauwackenschichten von Liev- und Esthland. Bull. Soc. Imp. Nat. Moscou, vol. 27, no. 



1, p. 3-111, pis. 1, 2. 

 1856. Beitrag zur geographischen Verbreitung der fossilen Thiere Russlands. Alte Periode. Bull. Soc. 



Imp. Nat. Moscou, vol. 29, no. 1, sect. 2, p. 88-127. 



1860. Lethaea Rossica . Stuttgart: vol. 1, p. i-xix, 1-1657; atlas (1859), p. 1-8, pi. 1-59. 

 Engelmann, George. 



1847. Remarks on Mrlonitcs multipora. Amer. Journ. Sci., ser. 2, vol. 3, pp. 124, 125, 451. 

 Etheridge, Robert. 



1888. Fossils of the British Islands. Vol. 1, Palaeozoic. Oxford: p. i-viii, 1-468. 





