Jed JeIN DDS 
CONTAINING 
ADDITIONS AND CORRECTIONS 
TO THE CHECK LIST. 
PREPARED under circumstances of remote isolation which deprived 
the author of the advantage of certain works of reference he desired 
to consult, the CHECK LIST contains some names for which no 
authority is cited, and in a few instances a change of the authority 
given may be required. 
One new species has been added to the North American fauna during 
the printing of the List; five additional known species have since been 
ascertained to occur in this country, and meanwhile several new varie- 
ties have been published after the impression had passed the page 
where they should respectively appear; these are brought into the 
present connection. Most of them appear entitled to varietal recog- 
nition; but in printing the names formally, for the convenience of 
those who may desire to use such names in labelling, the author must 
not necessarily be held to endorse them in every instance. 
The body of the List was printed, and some early copies distributed, 
in Dec., 1873; but the publication of the volume was held over until 
1874, to insert in the Appendix names then about being published. 
No. 41? The query indicates a probability that this is a variety of 
No. 40, as held by Mr. Allen. 
No. 46. The United States form constitutes a variety of true mezt- 
canus. See Ridgway, Am. Nat., vii, 1873, 603. 
(123) 
