746 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Page 263: In citation of Corvus caoalotl Bonaparte, Proc. Zool. 

 Soc. Lond., 1837, 115, instead of Mexico read Guatemala; crit. 



Page 267: For Corvus amei'icanus amer^'cawws Audubon x^^ Corvus 

 hrachyrhynclws hrachyrhynchos Brehm, and on page 268 insert the 

 following references: 



Conms brachyrhynchos Brehm (C. L. ), Beitr. zur Vogelkunde, ii, 1822, 56 (see 

 Richmond, Proc. Biol. Soc. Wash., xvi, 1903, 125). — American Ornitholo- 

 gists' Union Committee, Auk, xxi, 1904, 413. 



Page 269: After third line from top insert: 



ICorone] americana Heine and Keichenow, Nom. Mus. Hein. Orn., 1882, 120. 



Page 269: For Corvus amen'icanus pascuus Coues read Corvus ira- 

 chyrhynchos paseuus (Coues), and in synonymy, on page 270, insert: 



Corvus brachyrhynchos paacMus American Ornithologists' Union Committee, 

 Auk, xxi, July, 1904, 414. 



Page 270: For Corvus americanus hesperis read Corvus brachyrhyn- 

 chos hesperis. 

 Page 272: To citations of Corvus americanus hesperis add: 

 Anderson and Grinnell (J.), Proc. Ac. Nat. Sci. Phila., 1903, 10 (n. California). 



Page 272: For Corvus americanus caurinusvesA Corvus hraehyrhyn- 

 clios caurinus. 

 Page 273: To synonymy of Corvus americanus caurinus add: 



[Corone] caurina Heine and Beichbnow, Nom. Mus. Hein. Orn., 1882, 120 

 (Vancpuver I.). 



Page 275: To synonymy of Corvus ossif vagus add: 



[Corojie] ossifraga Heine and Reichenow, Nom. Mus. Hein. Orn., 1882, 120. 



Page 276: To synonymy of Corvus mexicantis add: 



[Corone] mexicana Heine and Reichenow, Nom. Mus. Hein. Orn., 1882, 120 

 (Mazatlan). 



Page 278: To synonymy of Corvus nasicus add: 



[Microcorax'] nadcus Heine and Reichenow, Nom. Mus. Hein. Orn., 1882, 120. 



Page 279: To citation of Corvus leucognaphaliis add: 



Taylor, Ibis, 1864, 168 (Porto Rico; hahits; iris bright red). 



Page 279: To synonymy of Corvus leucognaphalus add; 



CoTOJc crudroslra Ledru, Voy. Ten^riffe, etc., ii, 1810, 204, in text (Porto Rico; 

 coll. Paris Mus.). 



Page 279: To citation of Corvus leucognaphalus under C. I. e>'ythr- 

 ophthalmus add: 

 Christy, Ibis, 1897, 327 (Yuna R., Santo Domingo; habits). 

 Page 283: To citations of Picicorvtos columbianus add: 



Goss, Trans. Kansas Ac. Sci., xi, 1889, 61 (Mitchell Co., Kansas, 1 spec, Aug. 13, 



1888). 



