CONTENTS. 



PAGE 



It6!"~3r-^PN THE Geographical Distribution of the 



^Cfl^INObERMS of the WeST CoaST OF AMERICA, 323 



Comparison of the Tropical Echixoderm-Faun^ 



OF THE East and West Coasts of America, 339 



No. 4. — Notice of the Corals and Echinoderms col- 

 lected BY Prof. C. F. Hartt, at the Abrolhos Reefs, 

 Province of Bahia, Brazil, 1867,-. 351 



No. 5. — Notice of a Collection of Echinoderms from 

 La Paz, Lower California, with Descriptions of a 



NEW Genus, 371 



Supplementary Note on Echinoderms of the West 

 Coast of America, 376 



No. 6. — Review of the Corals and Polyps of the 



West Coast of America, 377 



Addenda, 546 



No. 7. — On the Geographical Distribution of the 



Polyps of the West Coast of America, 558 



No, 8. — Additional Observations on Echinoderms, 



chiefly from the Pacific Coast of America, 568 



No. 9. — On the Echinoderm-Fauna of the Gulf of 



California and Cape St. Lucas, 593 



