94 BULLETIN : iniSEUM OF COMPARATR'E ZOOLOGY. 



ARDEIDAE. 

 4. Butorides striata (Lixne). 



Three specimens, June 24 to July 2, all in the striped immature plumage. 

 They agree minutely -with a skin from Surinam in corresponding plumage 

 with which we have compared them. 



FALCONIDAE. 

 5. Urubitinga subtilis, sp. nov. 

 Type. - Coll. E. A. & 0. Bangs, No. 14,001, adult J, Gorgona Island, July 1, 1904. 



Two specimens, adult $, July 1, 1904; juv. $, June 19, 1904. 



Characters. — Somewhat similar to U. anthracina (Licht.), but smaller (wing 

 nearly two inches shorter) ; white central tail band and terminal margin nar- 

 rower; in color the new form differs from U. anthracina in having the ground 

 color of the broad mottled band extending across the secondaries, bright cinna- 

 mon rufous, this band in true U. anthracina having the ground color dull 

 grayish only tinged with rufous on the inner edges of some of the feathers; 

 the young skin has the wings much marked and spotted with cinnamon rufous 

 — much more so than in any of the many specimens of U. anthracina we have 

 examined. 



RALLIDAE. 

 6. lonornis martinica (Lix>e). 



One adult $ , June 23. 



This specimen shows no peculiarities. It agrees exactly with skins from 

 various localities in North and Middle America. 



CUCULIDAE. 

 7. Coccyzus melanocorjrphus Vieill. 

 One adult 9? June 23. This specimen is perfectly typical of the .species. 



TROCHILIDAE. 



8. Amizilis tzaeatl (Llave). 



Three specimens, all females, June 24 to July 2. These are not to be dis- 

 tinguished from continental specimens. 



