8 BULLETIN 112, UNITED STATES NATIONAL MUSEUM. 
The above list refers only to the early collectors who have fur- 
nished type specimens to the collection. To the many later private 
collectors who have wisely and generously contributed material to 
the United States National Museum I hope to give individual credit 
in another publication. 
There are a few new species on the point of publication which 
may possibly be delayed until after the issue of this bulletin. I have 
thought best to include their names, with references to the proposed 
vehicle of publication, to which the reader may hereafter add the 
page references when available. 
