CONTENTS. 



Page 



No. 1. — The Mybiopoda op the Australian region. By Ralph Y. 



Chamberlin. July, L920 .... 1 



No. 2. — Some m;\\ Ordovician trilorites. By Percy E. Raymond. 



July, 1920 271 



No. 3. — Xi:\\ mi ropteroid [N8ECT8. By Nathan Banks (7 plat' 



October, L920 297 



No. 4. — Notes on some birds, chiefly Neotropical. By Outram 



Bangs and Thomas E. Penard. January, 1921 . . 363 



No. 5. — The ants of the Fiji Islands. By W. M. Mann. Febru- 

 ary, 1921 399 



No. 6. — The Brachiopoda of the Maquoketa of Iowa. By John 



H. Bradley, Jr. (2 plates). April, 1921 . . . .501 



No. 7. — Chinese ants. By William Morton Wheeler. April, 



1921 527 



