CON T E N T S. 



Page 

 No. 1. — All Atlantic " Palolo," Staurockphalus grkgakicus. By 

 Alfred Goldsbokough Mater. (8 Plates.) June, li>00 1 



No. 1. — Some North American Fresh-Water Riiynchobuklliu.e, and 

 their parasites. By W. E. Castle. (8 Plates.) August, 1900 .... 15 



No. 3. — Fossil Lepidosteids from tlie Green Kiver Shales of Wyoming. 

 By C. R. Eastman." (2 Plates.) August, 1900 65 



No. 4. — Characters and Relations of Galltndloides, a Fossil Gallinaceous 

 Bird from the Green River Shales of Wyoming. By P^£ederic A. Lucas. 

 (I Plate.) August, 1900 77 



No. 5. — The Development of the Mouth-Parts of Ancrida maritima 

 Guer. By Justus Watson Folsom. (8 Plates.) October, 1900 ... 85 



No. 6. — Reports on the Dredging Operations oflF the West Coast of Central 

 America to tlie Galapagos, to the West Coast of Mexico, and in the Gulf 

 of California, in charge of Alexander Agassiz, carried on by the U. S. 

 Fish Commission Steamer " Albatross " during 1891, Lieut. Commander 

 Z. L. T.VNNER, U.S.N., Commanding. XXVIII. Description of two new 

 Lizards of tiie genus Anolis from Cocos and Malpelo Islands. By Leon- 

 hard Stejneger. (1 Plate.) November, 1900 159 



No. 7. — Contributions from the Zoological Laboratory of the Museum of 

 Comparative Zoology at Harvard College, under the direction of E. L. 

 Mark. No. 123. The Otocyst of Decapod Ckistacea: Its Structure, 

 Development, and Functions. By C. W. Prentiss. (10 Plates.) July, 

 1901 165 



No. 8. — On a Collection of Birds from the Liu Kiu Islands. By Outram 

 Bangs. July, 1901 253 



