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LEPTURUS. 
Todus, having for its prototypes a host of represen- 
tations in nearly all the families and genera of the 
perching birds, of which it is only necessary to 
mention Troglodytes, Orthotomus, Crateropus, Flu- 
vicola, Synallaxis, &c. to give an accurate idea of 
the structure of the bird before us. "We have no 
doubt that other Bpecies of Lepturus, and probably 
its types of form, will be detected, when the im- 
mense number of South American flycatchers, which 
we already know of from books and museum speci- 
mens, are properly examined, setting aside those 
which still remain undiscovered in that productive 
region, the central metropolis, as it were, of fly- 
catching birds. The structure of the toes and claws 
in Lepturus ruficeps will detach it from the typical 
todies, while the length of the tarsi and the com- 
pression of the bill, removes it far away from the 
little tyrants ( Tyrannula ). 
