874 
U. S. P. R. R. EXP. AND SURVEYS-ZOOLOGY-GENERAL REPORT. 
of other species are devoured by them when left unprotected. They do not dive, hut rest 
lightly upon the water, and rise easily from its surface. 
A second species of Tachypetes , T. palmerstonii, is admitted by some authors and denied by 
others. 
List of specimens. 
Sex. 
Locality. 
Whence obtained. 
Orig. 
No. 
Collected by— 
Stretch 
of wings. 
Wing. 
Florida _ _ _ 
G. Wurdemami__ 
A 
_do_______.... 
Cab. G. N. Lawrence_ 
1027 
J. J. Audubon_ 
38.00 
25. 00 
O 
do _ _ _ 
1028 
V 
