DETAILED GEOGRAPHIC DISTRIBUTION. 



119 



Geographic distribution of North American species of Cambrian Brachiopoda — Continued. 



Note.— The letters placed opposite each species in the various columns denote the State or province in which the species occurs; tor instance, 

 <n" in nninmn o nnrier A inHipates f.hat. t.hn snecies nnniir.s in Cane Breton. "CN" indicates that it occurs in both Cape Breton and JNew 



: under A indicates that the species occurs in Cape BretoU; 



