Nova Acta Academice Naturas Curiosorum. 373 



out his system. It should be observed that to each of his divisions he 

 usually gives two distinguishing names, the one functional and the other 

 structural. In order to avoid giving up too much of our space to a mere 

 catalogue of hard words, we quote one only, and the former in prefer- 

 ence to the latter. 



Series I. HYGRORNITHES. 



Tribe I. Halicolymbi. 

 Fam. 1. Orthocolymbi, [Colymbus, L.) 



2. Dyseretae, [Alca, L., Uria, Briss.) 



• 3. Eretse, {Aptenodytes, Forst.) 



Tribe II. Halipteni. 

 Fam. 4. Colymbopteni, [Pelecanidce, Leach.) 



■ 5. Plotopteni, {Laridce, Leach.) 



6. Colymboploteres, [Mergus, L.) 



Tribe III. Ploteres. 

 Fam. 7. Tachy ploteres, [Anas, Meyer.) 



8. Orthoploteres, (Anser, Meyer.) 



9. Baryploteres, [Cygnus, Meyer.) 



Series II. XERORNITHES. 



Tribe I. Choropteni. 



Fam, 10. Dromochoropteni, [OiiSy L., Charadriadce, Leach, Or- 

 tygis. 111.) 



11. Baterochoropteni, ( Telraonidce, Leach, PhasianidcBt 



Vig., CracidcB, Vig.) 



12, Herpochoropteni, [Columba, L.) 



Tribe II. Hylopteni. 

 Sect. I. Hylochasmopteni. 



Fam. 13. Hylochasmopteni, [Caprimulgus, L., Stcatornis, Humb., 

 Cypselus, 111., Hirando, L., Muscicapa, L., Edolius, Cuv., Platu- ■ 

 rhynchus, Desm., Trogon^ L.) 

 Sect. II. Hyloclasmopteni. 



Fam. 14. Orthaepyrhynchi, [Fringilla, L., Ember iza, L., Bu~ ■ 

 phaga, L., Phytotoma, Mol.) 



15. Simaepyrhynchi, [Glaucopis, Gmel., Tartagra, L-, 



Vol. V. B B 



