THE BIRDS 



NORTH AND MIDDLE AMERICA. 



By Robert Ridgway, 



Curator, Division of Birds. 



Part VI. 



Suborder PICARIiB. 

 PICARIAN BIRDS. 



"^Pidnx NiTzscH, Syst. Pterylog., 1840, 132 (Capitonid3e+Bucconidae4- 



RamphaBtidse + Pic idae ) . 

 —?Phlosodrominse A. Milne-Edwards, Ois. Foss., ii, 1867-1871. 

 "^Picarise (not of Nitzsch, 1820, except in small part only) Garrod, Proc. Zool. 



Soc. Lond., 1874, 117 (Picidse+Ramphastidse+Capitonidae). 

 '^Coccyges zygodnctylse Sclater and Salvin, Nom. Av. Neotr., 1873, 104 (Gal- 



bulidse+Bucconidse+Ramphastidae). 

 '^Zygodactylx (not Zygodactyli Vieillot, 1816) Sclater, Ibis, 1880, 402 (excludes 



Pici). 

 =Scansores (not of Illiger, 1811) Seebohm, Classif. Birds, 1890, pp. vii, xi, 6. 

 "^Scansores Sharpe, Rev. Classif. Birds, 1891, 83 (excludes Galbulee and Pici). 

 "^Piciformes Sharpe, Rev. Classif. Birds, 1891, 84 (excludes Capitones and 



Ramphastides) . 

 =Picoidex Stejneger, Stand. Nat. Hist., iv, 1885, 412. 

 '^Picine Scansores Seebohm, Classif. Birds, 1890, 6 (excludes Galbulse). 

 '^Pid (not of Meyer and Wolf, 1810) Fuerbringer, Unters. Morph. Syst. Vog., 



1888, 1567 (excludes Galbulse). 

 =Pia Gadow, in Bronn's Thier-Reich, Vog., ii, 1893, 259, 301; Classif. Vertebr., 



1898, pp. XV, 37. — Beddard, Struct, and Classif. Birds, 1898, 183. — Knowl- 



TON, Birds of the World, 1909, 50. 



Antiopelmous and zygodactylous Coraciiform birds with myo- 

 logical formula AXY or AlX, flexor tendons of type VI (in this 

 respect unique), hypotarsus complex, and spina interna absent. 



Palate saurognathous or schizo-segithognathous (Pici), segithogna- 

 thous or segitho-desmognathous (Capitones) or desmognathous 

 (GalbulfB and Ramphastides); basipterygoid processes absent; 

 vomer present or absent; coracoids separated; cervical vertebrte 

 14; metasternum 4-notched or with 4 foramina; spina externa 

 present, forked (Galbulae, Pici) or simple (Capitones, Ramphastides) ; 

 syrinx tracheo-bronchial ; two carotid arteries (Galbulse) or only one 

 3622°— Bull. 50, pt 6—14 1 



