THE CLASSIFICATION OP BIEDS. 28 1 



wanes '. The third family consists of the American Ostriches, 

 or Bheas '\ and the true Ostrich, which, as the type, deter- 

 mines the name of the family to be Struihionidce. 



The following table expresses the groups of Birds, with the 

 names of the genera pertaining to each family and subfamily, 

 and a figure indicating, the probable minimum number of species 

 in each genus. These numbers are not always to be taken as 

 expressing the total number now described, but as an approxi- 

 mation thereto. 



Class AVES. 

 Subclass I. CARINATiE. 

 Order I. PASSEEIF0EME8. 

 Suborder I. PASSEEES. 



Section A. Acromyodi or Oscines. 



Family I. CoEviDiB. 



1. Subfamily Corvinae. 



Trypanocorax, 2. Heterocorax, 1. Corvus, 11. 

 Corvultur, 2. Coloeas, 5. Corone, 12. Rhinocorax, 

 1. Oazzola, 1. Microeorax, 4. Physocomx, 1. 

 Gymiwcorax, 1. Macrocorax, 2. Nueifraga, 4. 

 Strepera,7. Pica, 3. Ci/anopoUus,2. Urocissa,6. 

 CryptarJdna, 1. Bendrodtta, 8. Orypairhina, 2. 

 Cissa, 3. Calodtta, 2. Platysmurws, 2. Temrob- 

 rits, 1. Qarrdus, 14. Perisoreus, 4. Cyanodtta, 5. 

 Aphelocoma, 8. Cyanoearax, 16. Xanthura, 14. 

 Uroleuca, 1. GymnokiUa, 1. Psilorhinus, 3. 

 Struthidea, 1. Picathartes, 1. Glaucopis, 2. 

 Heterahcha, 1. Creadion, 1. Falculia, 1. 



2. Subfamily Fregilinae. 



Gracultts, 1. Pyrrhocorax, 1. Cor cor ax, 1. Po- 

 doces, 4. 



Family U. PARADiSBina!. 

 1. Subfamily Epimachinae. 



PtihrMs, 6. Seleucides, 1. Brepanornis, 3. 

 Epimachus, 3. 



1 p. 66. " P. 65. 



