NICKLES AND BASSLER. 



GEOLOGIC DISTRIBUTION. 



119 



Gntfra irilJi niimher of s/wriex jnrsiiif In. I\il<>(iz<>ic foriiKtlionx — ('oiifiiiiicd. 

 SUMMARY OF SI'ECIES BY FAMILIES. 



SUMMARY OF SPECIES BY SUBORDERS. 



