SMITHSONIAN INSTITUTION 



UNITED STATES NATIONAL MUSEUM 

 Bulletin 103 



CONTRIBUTIONS TO THE GEOLOGY AND PALEON- 

 TOLOGY OF THE CANAL ZONE, PANAMA, AND 

 GEOLOGICALLY RELATED AREAS IN CEN- 

 TRAL AMERICA AND THE WEST INDIES 



CIRRIPEDIA FROM THE PANAMA 

 CANAL ZONE 



V&AB. 33. RUSSBR 

 Vt§, NATIONAL MUSEUJK 



By HENRY A. PILSBRY _ A „ . u bBU * 



Washington. & a 



Of the Academy of Natural Sciences, Philadelphia 



Extract from Bulletin 103, pages 185-188, with Plate 67 



WASHINGTON 



GOVERNMENT PRINTING OPFICE 



1918 



