CLARK : THE ECHINODERMS OF PERU. 355 



LITERATURE CITED. 

 A. Agassiz. 



1863. List of the echinoderms sent to different institutions in exchange for 



other specimens, with annotations. Bull. M. C. Z., 1, p. 17-28. 

 1872 a. Preliminary notice of a few species of Echini. Bull. M. C. Z., 3, 



p. 55-58. 

 1872 b. Revision of the Echini. Mem. M. C. Z., 3, 774 pp., 9-4 pis. 



A. Agassiz and H. L. Clark- 



1908. Hawaiian and other Pacific Echini. The Salenidae, Arbaciadae, 

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L. Agassiz. 



1841. Monographies d'E^chiuodermes, Scutelles. 155 pp., 27 pis. 



L. Agassiz et E. Desor. 



1846. Catalogue Raisonne des families, des genres et des especes de la 

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F. J. Bell. 



1893. On Odontaster and its allied or synonymous genera of asteroid echi- 

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H. M. de Blainville. 



1825. Oursin, Diet. Sci. Nat., 37, p. 59-98. 

 H. L. Clark. 



1902. Papers from the Hopkins-Stanford Galapagos expedition, 189S-99. 

 XII. Echinodermata. Proc. Washington Acad. Sci., 4, p. 521-531. 



1907. The starfishes of the genus Heliaster. Bull. M. C. Z., 51, p. 23-76, 

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1909. Scientific results of the trawling expedition of H. M. C S. "Thetis" 

 off the coast of New South Wales in February and March, 1898. Eclu- 

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F. Dujardin et H. Hupe\ 



1862. Histoire naturelle des Zoophytes Echinodermes. p. 1-628. 



W. K. Fisher. 



1906. The starfishes of the Hawaiian Islands. Bull. U. S. F. C. for 1903, 

 part 3, p. 987-1130, pis. 1-49. 



1908. Necesssary changes in the nomenclature of starfishes. Smithsonian 

 Misc. Coll., 52, p. 87-93. 



C. Gay. 



1854. Historia fisica y politica de Chile. Zoologia, 8, 500 pp. 

 J. E. Gray. 



1840. A synopsis of the genera and species of the class Hypostoma (Aste- 

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