3i 



Vid loeskrlfiiingen af species förekom- 

 ma åtskilliga för var egen Fauna intres- 



55 Anterior toes united to the first 

 joint or beyond. 



7. Syndactyli. Bill straight, entire. 



8. Serrati. Bill exceedingly large, curved 

 serrate. 



TRIBE IL AMBULATORES. Toes three 

 before, one behind. 



5 Feet gressorial. 



9. Demtirostres. Bill cultrate; tibiae feathered. 



10. Angulirostres. Bill subqiiadrangular, 

 acuminate: tibiae half naked. 



55 Feet ambulatory. 



11. Gregarii. Bill robust, conic-acuminate, 

 or cultrate, forming a sinus in the front 

 feathers. 



*Bill conic-actiminate. **Bill cultrate. 



12. Sericati. Bill short, depressed, gape 

 veiy wide; wings and feet moderate. 



13. Chelidones. Bill very short, depressed: 

 slender; gape very wide: wings very long : 

 feet remaikably short. 



1 4- Canori. Bill moderate, more or less 

 subulate: outer toe united at base to the 

 middle one. 



*BiU depressed. **BiII robust; convex, 

 compressed. ***Bill subcultrate. ****BilI 

 subulate. 



1 5. Tenuirostres. Bill elongated, slender: 

 tongue not extensible. *Anerpontes. **Epop- 

 sides. 



16. Anthomyzi. Bill elongated, very slen- 

 der: tongue extensible. 



17. ^GiTiiAM. Bill short, härd, conic-subu- 

 late, hind toe and nail largest. 



18. Passerini. Bill short, robust, conic. 



19. GoLUMBiNi. Bill vaulled: noslrils covcred 

 by a turgid mcmbrane. 



20. Passerigalli. Bill vaulted, no turgid 

 mcmbrane. 



