Bulletin of the Museum of Comparative Zoology 



AT HARVARD COLLEGE. 



Vol. LXI. No. 9. 



NEW BLASTOIDS AND BRACHIOPODS FROM THE 

 ROCKY MOUNTAINS. 



By Thomas H. Claek. 



With Two Plates. 



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



PRIN-^ED FOR THE MUSEUM. 



August, 1917. 



