INDEX BIBLIOGRAPHIQUE. 
A. AGASSIZ. List of Echinoderms. — Bull. Mus. Comp. Zoology Harward college. Cambridge, 
Mass., vol. i, n. 2, 1863. 
— Synopsis Nord-Pacific... Echinoids. — Proced. Acad. n. sc. Philadelphie, 1863. 
— On the embryology of Echinoderms. — Mem. amer. Acad., IX, p. 30, 1864. 
— Preliminary report on the Echini and starfishes dredged in deep water beetwen Cuba 
and the Florida. — Bull. mus. Comp. zoology. Harward college, 1, n. 9, 1869. 
— Appendix to above. Ibid., III, 1872. 
— Révision of the Echini. Ib., vol. VII, 1872-) 874. 
— Zoological results of the Hasler expédition. Ibid., VIII. 1874. 
— Reports on the dredging operations of the U.-S. coast survey st. Blake . — Echini. Ibid., 
vol. V. 1878. 
— Note on some points in the history of the synonimy of Echini. Proc. zool. soc. London, I. 
1880. 
— Report of the Echinoidea in : Report of the scientific results of the exploring voyage 
of H.M.S. Challenger. — Zoology, vol. III. 1881. 
L. AGASSIZ. Prodrome d’une monographie de Radiaires ou Echinodermes. * — Mémoires de la 
Société des sciences de Neufchâtel. 1835. 
— Observations of the growth and bilateral symetry of Echinodermata. — Philosoph. mag. 
1835. 
— Anatomie du genre Echinus (Valentin). — Neufchâtel. 1841. 
— & DESOR. Catalogue raisonné des familles, genres et espèces d’Echinodermes. — Ann. 
des Sc. nat., Zoologie. 1846 et 1847. 
ANKUM. Generatie-organen by Echinus. — Tijd. Nederl. Dierk. Verein. 1874. 
ARADAS. Echinidi viventi e fossili di Sicilia. — Atti dell’Academia Gioenia di Sc. nat. di Catania. 
vol. VI et VII, 1850; vol. VIII, 1853 ; vol. X, 1854, 
AUSTIN. — Arrangement of the Echinodermata. — Ann. and magazine of nat. history. 1842. 
BARREL & ■ M. ANDREY. Echinoderms dredged between Drontheim and North Cape. — Ann. 
and mag. of nat. history, XX, 1857. 
BAUDELOT. Études générales sur le système nerveux. — Arch. zool. exper., T. I, 1872. 
BELL. Observations on the characters of the Echinoidea. — Proc. zool. soc., London, 1879. 
— Note on the number of anal plates in Echinocidaris. — Ibid., 1880. 
• — On the names to be applied to certain Echinoidea. — Ibid. 1880. 
— & JEFFREY. Observations on the characters of the Echinoidea. — Ibid., 1881. 
