U. S. NATIONAL MUSEUM BULLETIN NO. 50, PART 5, PL. | 
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A ae ——— 
|. SCYTALOPUS argentifrons. 
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Nt | 
2. THAMNISTES anabatinus. 
3. HYPOLOPHUS melanonotus. 
4. ERIONOTUS atrinuchus. 
5. CYMBILAIMUS fasciatus. 
