^u v - 



Bulletin of the Museum of Comparative Zoology 



AT HARVARD COLLEGE 



Vol. LIV. No. 20. 



A REVISION OF THE AMERICAN SRSGI&S OF CERAURUS. 



By Percy E. Raymond and Donald C. Barton. 



With Two Plates. 



CAMBRIDGE, MASS., U. S. A., 



PRINTED FOR THE MUSEUM. 



November, 1913. 



