2^4 Tzvelftk Supplemeiit to the A. O. U. Check-IJ$t. \j^ 



Geog. Dist. — Lower Rio Grande, in Texas, south through 

 eastern Mexico and Central America, to Costa Rica (both sides). 

 The subspecies sharpei is not satisfactorily differentiated from 

 morelleti. {Cf. Ridgway, Bull. U. S. Nat. Mus., No. 50, pt. I, 



190I' 575-) 



[607.1.] Firanga rubriceps Gray. This is removed from the 

 ' Check-List ' and becomes 



18. L Firanga rubriceps Gray, of the ' Hypothetical List.' 



Genus IRIDOFROCNE Coues. 



Iridoprocne Coues, Birds Colo. Valley, 1878, 412. Type, 

 Hirundo bicolor Vieillot. {Cf. Coues, Osprey, III, 1899, 

 144.) Hence No. 614 becomes 



614. Iridoprocne bicolor (Vieillot). 



Hirundo bicolor Vieillot, Ois. Am. Sept., I, 1807, 61, pi. 31. 

 I\ridoproc7ie\ bicolor Coues, Birds Colo. Valley, 1878, 412. 



615a. Tachycineta thalassina brachyptera Brewster. 



Saint Lucas S'wallo'w. 



Tachycineta t/ialassina brachyptera Brew.ster, Bull. Mus. 

 Comp. Zool., XLI, 1902, 167. 



[B 22d,, part, C \\T^, part, R 1^6, part, C \6i, part.'] 



Geog. Dist. — Cape region of Lower California. {Cf. Brewster, 

 Bull, Mus. Comp, Zool., XLI, 1902, 167,) * 



627a, Vireo gilvus STvainsonii (Baird), 

 Western Warbling Vireo. 



Vireo swainsonii Baird, Pacific R. R. Reports, IX, 1858, 336. 

 Vlireo^glilviis] swains oniiQovY.'&, Key N. A. Birds, 1872, 121, 



[B 245, part, C 125a, R 139a, C 175.] 



