144 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
Ceryle americana septentrionalis Suarpez. 
One adult ¢; Yaruca. 
Glaucidium griseiceps SHARPE. 
Two specimens, ¢ & 9; Yaruca. 
Nyctidromus albicollis (GmMt.). 
One ¢; Ceiba. 
Phaethornis longirostris longirostris (Less. anp DEwatt.), 
One adult ¢; Ceiba. 
Amazilia tzacatl dubusi (Bourc. anp Muts.). 
Six specimens, both sexes ; Ceiba and Yaruca. 
Amazilia cyanocephala (LEss.). 
One adult 9; Yaruca. After studying all the material in Washington, — 
collections U.S. National Museum and Division of Biological Survey, — I can- 
not satisfactorily separate by external characters or geographic range the sub- 
species A. guatemalensis Gould. The present example is true A. cyanocephala. 
Thalurania townsendi Ripe. 
One adult ¢; Yaruca. This very distinct species is still a rare bird in col- 
lections, and so far as known has a very restricted range. 
Heliothrix barroti (Bourc. anp Motzs.). 
Two males ; Ceiba and Yaruca. 
Trogon melanocephalus Gou pn. 
Seven specimens, both sexes ; Ceiba. 
Trogon caligatus caligatus GouLp. 
Five specimens, both sexes ; Yaruca. On comparing these and Mexican 
specimens with skins from Panama, I find that the latter represent a very well- 
marked subspecies, differing from the more northern bird —true C. caligatus — 
