CATALOGUE 



BIRDS. 



Order PICARI^. 



(See vol. xvi. p. 1.) 



Suborder SCANSORES. 



Si/)wpsis of the Families, 



I. Oil-gland tufted ; caeca none. 



A. Tail-feathers twelve, 



1. The lateral halves of the vomer sepa- 



rate ; manubrial process of the ster- 

 num bifurcate Picidae. 



2. Vomer single, bifurcate ; manubrial 



process of the sternum pointed .... IndicatoridaB. 



B. Tail-feathers ten. 



1. Vomer single, bifurcate; manubrial 



process of the sternum pointed .... Capitonidae. 



2. Vomer single, truncate ; manubrial 



process of the sternum pointed .... EhamphastidaB. 



II. Oil-gland nude ; caeca developed. 



Tail-feathers twelve. 



1. Ventral tract of the pterjdosis with an 



inner branch at the posterior end of 



its gular portion ; gonys angular . . Galbulidae. 



2. Ventral tract without an inner branch; 



gonys rounded BucconidaB. 



VOL. xvm. B 



