CONTENTS. 



Page 

 No. 1. — The Palolo Worm, Eunice viridis (Gray). By W. McM. Woodworth. 

 (3 plates.) May, 1907 1 



No. 2. — The Starfishes of the Genus Heliaster. By Hubert L. Clark. 

 (8 plates.) June, 1907 23 



No. 3. — Types of Fossil Cetaceans in the Museum of Comparative Zoology. 

 By C. R. Eastman. (4 plates.) June, 1907 77 



No. 4. — Observations on the Type Specimen of the Fossil Cetacean Anoplo- 

 nassa forcipata Cope. By Frederick W. True. (3 plates.) July, 1907 . 95 



No. 5. — Preliminary Report on the Echini collected in 1906, from May to 

 December, among the Aleutian Islands, in Bering Sea, and along the Coasts 

 of Kamtchatka, Sakhalin, Korea, and Japan, by the U. S. Fish Commission 

 Steamer " Albatross," in Charge of Lieut. Commander L. M. Garrett, U. S.N., 

 Commanding. By Alexander Agassiz and Hubert L. Clark. October, 

 1907 107 



No. 6. — Reports on the Scientific Results of the Expedition to the Eastern 

 Tropical Pacific, in Charge of Alexander Agassiz, by the U. S. Fish Com- 

 mission Steamer "Albatross," from October, 1904, to March, 1905, Lieut. 

 Commander L. M. Garrett, U. S. N., Commanding. XI. Die Xenophyo- 

 phoren. Von Franz E. Schulze. (1 plate.) November, 1907 .... 141 



No. 7. — The Cidaridae. By Hubert L. Clark. (11 plates.) December, 

 1907 163 



No. 8. — Notice of some Crinoids in the Collection of the Museum of Com- 

 parative Zoology. By Austin H. Clark. (2 plates.) January, 1908 . . 231 



No. 9. — New Plagiostomia and Chismopnea. By Samuel Garman. Febru- 

 ary, 1908 249 



No. 10. — New phytophagous Hymenoptera from the Tertiary of Florissant, 

 Colorado. By Charles T. Brues. March, 1908 257 



No. 11. — Some Japanese and East Indian Echinoderms. By Hubert L. 

 Clark. April, 1908 277 



No. 12. — Some new Reptiles and Amphibians. By Thomas Barbour. 

 April, 1908 313 



