1892.] CLASSIFICATION OF BIRDS. 243 



Aftershaft rudimentary. 



Oil-gland tufted. Aquinto-cubital. 



Riiamphotheca with ceroma ; bill with lamellse. Nares 



pervious. 

 Desmognathous. With basipterygoid processes. 

 Angulare of mandible long and recurved. 

 Coraco-humeral groove indistinct. 

 No ectepicondylar process. 



Two pairs of pectoro-tracheal muscles. (Unique.) 

 Intestinal convolutions of type III. 

 Caeca functional. 

 Penis large, spiral. (Unique among Carinatso.) 



I. Palamede^. 



Neotropical. 



Basipterygoid. articulation on middle of pterygoids. 



Hypotarsus simple. 



Kibs without uncinate processes. (Unique.) 



II. Anseres. 



Basipterygoid processes articulating with the palatine 



end of the pterygoids. 

 Hypotarsus complex. 

 Ribs with uncinate processes. 



13. CRYPTURIFORMES. 



. Neotropical. Nidifugous. Phytophagous. 

 Schizognathous. Vomer fused with bones of palate. 



(Unique.) 

 Basipterygoid processes present. 

 Rhamphotheca compound. Nares impervious. Holo- 



rhinal. 

 Sternum with very slender and long mesosternum and 



simple posterior lateral processes. Procoracoid process 



rudimentary. 

 With incisura ischiadica. 

 Hypotarsus simple. 

 Flexors of type 11. 

 Neck with lateral apteria. 

 Aftershaft rudimentary. 

 Oil-gland tufted. Quinto-cubital. 

 10 primaries. 

 Plagiocoelous, type V. Cseca large. Crop globular. 



I. Crypturi. 



14. GALLIFORMES. 



Cosmopolitan. Phytophagous. 



Schizognathous. Nares impervious. Rhamphotheca sim- 

 ple. 



