of the United States. 1? 



Genus 28. Sitta. Bill conic-subulate. 



Family Anthomyzi. 



29. Trochilus. 



Family ^githalt. 



30. Parus. 



Family Passerim. 



31. Alauda. Bill conic-attenuated, entire : hind nail 



long, straightish. 



32. Embf.riza. Upper mandible coarctate, narrower 



than the lower. 



33. Tanagra Bill at base trigonal and somewhat 



depressed, slightly curved at tip : outer toe 

 united at base to the middle one. 



34. Fringilla Bill perfectly conic, acute ; upper man- 



dible wider than the lower. 



35. Pyrrhula. Bill conic-convex, turgid ; upper 



mandible much curved at tip. 



36. Loxia. Mandibles crossing each other. 



Family Columbini. 



37. CoLUMBA. 



ORDER GALLING. 



Family Gallinacei. 



38. Meleagris. Bill with a cere-like membrane : tarsi 



naked. 



39. Perdix. Bill bare : tarsi naked. 



40. Tetrao Bill covered at base with feathers : tarsi 



feathered. 



ORDER GRALUE. 



Family Pressirostres. 



41. Charadrius Bill short, rounded, obtuse, some 



what turgid at tip : hind toe wanting or ex- 

 ceedingly small. 



