X IXTBODUCTION". 



Vols. III., IV., and V. are occupied with the Passeriformes and their 

 allies, the numbers of species and genera being estimated as follows : — 



Genera. Species. 



Vol. III.] Order XXXIII. EuRYLjEMiFORMBS 7 18 



„ XXXIV. Menubifoumes 1 3 



„ XXXV. Passeriformes. 



Siib-prder I. Mesomyodi. 



Division A. Traclieophonai. 



Fam. I. Pteroptochidae 8 31 



„ II. Conopophag'idse 2 19 



„ III. FormicariidBS 38 408 



„ IV, Dendrocolaptidas 53 4-58 



Division B. OligomyodcB. 



Fam. I. Tyrannidse 87 617 



„ II. Oxyrhamphidfe 1 3 



„ III. Pipridse 20' 95 



„ IV. Ootingidas 30 150 



„ V. Phytotomidfe 1 4 



„ VI. Pittidse S 69 



„ VII. Philepittid* ] 2 



„ VIII. Xenicidse 3 6 



Sub-OrJer II. Aeromyodi. 



A. Passeres abnormales. 



Fam. I. Atrichornithida3 I 2 



B. Passcres iiormales. 



Fam. I. Hirundinidoe 17 143 



„ II. JMusoicapidse 96 796 



„ III. CampopbagidiB 12 196 



„ IV. Pycnonotidse 44 291 



427 331 1 



