NO. 3 CASSIDULOID ECHINOIDS — KIER 229 



a synonym of Stigmatopygus. However, all the other species of 

 Stigmatopygus are from the Upper Cretaceous, whereas the type 

 species of Platypygiis is from the Miocene. As the phyllodes are not 

 known in this species, it seems advisable to refer this genus to incertae 

 sedis. 



Mortensen and Lambert and Thiery are mistaken in spelling Plati- 

 pygus "Platypygus" and in turn considering it to be a junior homo- 

 nym of Platypygiis Loew 1844. It is spelled Platipygus in Dc Loriol's 

 original description. 



LITERATURE CITED 



Agassiz, a. 



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



other specimens. Bull. Mus. Comp. Zoo!., vol. i, No. 2, pp. 17-28. 

 1869. Preliminary report Echini, deep water Florida Straits. Bull. Mus. 



Comp. Zool., vol. I, No. 9, pp. 253-308. 

 1872-1874. Revision of the Echini: Mem. Mus. Comp. Zool., vol. 3, pts. 3, 



4, pp. 383-762, pis. 1-38. 

 1878. Report on the results of dredging ... in the Gulf of Mexico by 



the U. S. Coast Survey Steamer "Blake." Report on the Echini. 



Bull. Mus. Comp. Zool., vol. 5, No. 9, pp. 185-196, 5 pis. 

 1883. Reports on the results of dredging in the Gulf of Mexico (1877-78) 



in the Caribbean Sea (1878-79) and along the Atlantic Coast of 



the United States (1880) by the U. S. Coast Survey Steamer 



"Blake." No. 2/|, pt. i, Report on the Echini. Mem. Mus. Comp. 



Zool., vol. 10, No. I, 126 pp., 32 pis. 

 Agassiz, L. 



1836a. Notice sur les fossiles Cretaces du Jura Neuchatelois. Mem. Soc. 



Sci. Nat. Neuchatel, vol. i, pp. 126-145. 

 1836b. Prodrome d'un monographie des radiaires ou echinodermes. Mem. 



Soc. Sci. Nat. Neuchatel, vol. i, pp. 168-199. 

 1839. Description des echinodermes fossiles de la Suisse: premiere parte. 



Allg. Schweizcr. Ges. Neue Denkschr., vol. i, loi pp., pis. 1-13 bis. 

 1840a. Catalogus systcmaticus ectyporum cchinodermatum fossilium musci 



Neocomcnsis, Solothurn. 20 pp. 

 1840b. Description des echinodermes fossiles dc la Suisse : sccondc parte. 

 Allg. Schwcizer. Ges. Neue Denkschr., Bd. 4, 108 pp., pis. 14-23. 

 Agassiz, L., and Desor, P. J. E. 



1847. Catalogue raisonne des echinides. Ann. Sci. Nat., ser. 3, vols. 6-8, 



167 pp., I pi. 

 Archiac, V. d'. 



1850. Histoire des progres de la geologic, vol. 3. 624 pp. 

 Archiac, V. d', and Haime, J. 



1853. Description des animaux fossiles du groupe nunimulitique de I'lnde, 



Z72 PP-. 36 pis., Paris. 

 Arnold, B. W., and Clark, H. L. 



1927. Jamaica fossil Echini; with descriptions of new species of Cainozoic 



Echinoidea by Herbert L. Hawkins. Mem. Mus. Comp. Zool., 



vol. 50, No. I, 84 pp., 22 pis., 3 figs. 



