373 



O. occidentalis. Perhaps Prof. Baird may be right in uniting all 

 the N. American birds under O. cornuta ; but there is great differ- 

 ence in size between Eastern and Western birds. 



Fam. Parid^e. 



24. Lophophanes wollweberi (Bp.) : P. Z. S. 1857, p. 299. 

 Talea. 



25. Sitta carolinensis, Linn. 



Cinco Senores. Smaller than examples from Vera Cruz : see anted, 

 p. 363, and P. Z. S. 1857, p. 300. 



26. POLIOPTILA MEXICANA, Bp.? 



Four examples : Oaxaca (March) . I am still doubtful about this 

 species, whether it is anything more than P. ccerulea in winter plu- 

 mage. One example, marked male, shows traces of the black front- 

 band. 



Fam. Mniotiltid^e. 



27. Siurus ludovicianus, Bp. ; Baird, Rep. p. 262. 

 Totontepec (Jan.). 



28. Mniotilta varia (Linn.). 

 Juquila and Totontepec. 



29. Parula superciliosa (Hartl.) : P. Z. S. 1857, p. 299. 

 Talea. 



30. Geothlypis trichas (Linn.) : Baird, Rep. p. 241. 

 Totontepec and Oaxaca. 



31. Geothlypis macgillivraii (And.): Baird, Rep. p. 244. 



Choapam (Feb. 1859) ; Cinco Senores (Feb.). Males in full 

 plumage, and females. 



32. Helminthophaga ruficapilla (Wils.): Baird, Rep. p. 256. 

 <3 adult et juv. Oaxaca (Feb.). 



33. Helminthophaga celata (Say) : Baird, Rep. p. 257. 



2 Oaxaca and Cinco Senores. One specimen is curiously clouded 

 with dark colour. The other shows traces of the vertical spot. 



34. Helminthophaga peregrina (Wils.) : Baird, Rep. p. 258. 



In a state of plumage which I believe to be the winter dress of 

 this species. 



35. Dendroica virens (Gm.). 

 Talea and Play a Vicente (April). 



