14 INTRODUCTION. 



24. Pelmatodes. Bee-eaters, Kingsfisliers. 



25. Antriades. Rock-birds. 



26. Prioniti. Hornbills. 



27. Lyriferi. Meniiras. 



28. Ophlophagw. Snake-eaters. 



29. Cohimhlni. Pigeons. 

 SO. Alectrides. Penelopes. 



III. Gallinacei. Feet short, or moderate, somewhat robust ; 

 legs entirely covered with feathers ; tarsi naked, or feathered ; 

 toes callous beneath, three before and one behind, or none be- 

 hind ; pollex when present higher than the rest, resting on the 

 ground by its tip, or not reaching it ; claws short, not retract- 

 ile, generally somewhat blunt, rarely compressed, arched, and 

 acute. Beak vaulted ; upper mandible covering the edges of 

 the lower. 



1. Nudipedes. Turkeys, Peafowls, Pheasants, Partridges. 



2. Plumipedes. Grouse, Ptarmigans. 



IV. Grallatores. Feet moderate, or long, robust, or slen- 

 der. Legs half-bare ; toes slit or webbed, sometimes margined ; 

 two before only, three before only, or three before and one be- 

 hind ; pollex raised from the ground, or resting upon it only by 

 the tip, or reposing upon it in its whole length ; claws of varied 

 form, not retractile. Bill of various shapes. 



Tribe 1. Two or three toes before, none behind. 



1 . Megistanes. Ostriches, Cassowaries. 



2. Pedionomi. Bustards. 



8. uEgialltes. Long-shanks, Oyster-catchers, Plovers. 

 Tribe 2. Three toes before, one behind. 



4. Elonorni. Lapwings, Turnstones, Snipes, Curlews. 



5. Falcirostres. Ibises. 



6. Latirostres. Spoonbills. 



7. Herodiones. Herons. 



8. ^rQplionl. Cranes. 



9. CoUoramphi. ►Sheath-bills. 



10. Uncirostres. Screamers, Serpent-eaters. 



11. Hilehatw. Trumpeters. 



