MUSEUM OF COMPARATIVE ZOOLOGY. 43 



No. 8. Preliminary Report on the Echini collected in 1902, among the Hawaiian 

 Islands, by the U. S. Fish Commission Steamer " Albatross," in Charge of 

 Commander Chauncey Thomas, U. S. N., Commanding. By Alexander 

 Agassiz and Hubert Lyman Clark, pp. 32. March, 1907. 



No. 9. A collection of Sphecidae from Argentine. By H. T. Fernald. 

 pp. 12. May, 1907. 

 Vol. LI. 



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

 pp. 22. 3 Plates. May, 1907. 



No. 2. The starfishes of the genus Heliaster. By Hubert Lyman Clark. 

 pp. 54. 8 Plates. June, 1907. • 



No. 3. Types of fossil cetaceans in the Museum of Comparative Zoology. By 

 C. R. Eastman, pp. 18. 4 Plates. June, 1907. 



No. 4. Observations on the type specimen of the fossil cetacean Anoplonassa 

 forcipata Cope. By Frederick W. True. pp. 12. 3 Plates. July, 1907. 

 Memoirs : — 

 Vol. XXX. 



No. 3. Reports on an Exploration off the West Coasts of Mexico, Central and 

 South America, and off the Galapagos Islands, in Charge of Alexander 

 Agassiz, by the U. S. Fish Commission Steamer " Albatross," during 1891, 

 Lieut. Commander Z. L. Tanner, U. S. N., Commanding. XXXVI. Ein 

 Beitrag zur Morphologie des Tiefseefischgehirnes. Von Emanuel Trojan. 

 pp. 42. 6 Plates. October, 1906. 

 Vol. XXXIV. 



No. 1. Hawaiian and other Pacific Echini. The Cidaridae. By Alexander 

 Agassiz and Hubert Lyman Clark, pp. 60. 44 Plates. February, 

 1907. 

 Vol. XXXV. 



No. 1. 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. VIII. The Hydroids. 

 By Samuel F. Clarke, pp. 20. 15 Plates. February, 1907. 

 Report : — 



1905-1906. pp. 37. 3 Plates. December, 1906. 



