APPENDIX. 
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2.  Gypaetus  barbatus.  Add  :  Gould,  B.  of  Eur.  pi.  4.,  Riipp. 
Syst.  Uebers.  Vog.  Nord-Ost  Afr.  t.  1.  ;  Gypaetos  subalpinus 
et  G.  nudipes  Brehm,  Isis,  1840.  p.  771. 
3.  Vultur  monachtts.    Add  :  Gould  B.  of  Eur.  pi.  2. 
4.  Otogyps  calvus.  Add:  Shaw,  Nat.  Misc.  pi.  941. ,  Gray, 
111.  Ind.  Zool.  pi.  15.  f.  2. 
Gyps  fulvus.    Add:  Gould,  B.  of  Eur.  pi.  1. 
5.  Neophron  percnopterus.  PI.  enl.  407.  Read :  427.  Add: 
Gould,  B.  of  Eur.  pi.  3. 
6.  Sarcoramphus  gryphus.  Add:  Sarcoramphus  condor 
Less. 
S.  papa.     Add:  Azara,  No.  1. 
Cathartes  fcetens.    Add  :  Azara,  No.  2. 
C.  aura.    Add  :  Azara,  No.  3.,  Wils.  Amer.  Orn.  pi.  75. 
f.  r. 
C.  californianus.  Add  :  Licht.  F.  von  Calif,  t.  1.,  Berl. 
Trans.  (1838). 
Examine,  and  add  as  a  species : 
C.  septentrionalis  (Pr.  Max.),  Voy  de  l'Amer.  du  Nord,  App. 
p.  247.  —  Cathartes  Burrovianus  Gamb.  Proc.  Acad.  Nat. 
Sci.  Bost. 
9.      Ibycter  aquilinus.    Read:  I.  arnericanus  (Bodd.). —  Falco 
aquilinus  Gmel.  Sec. 
Examine,  and  add  : 
I.  gymnocephalus  D'Orb.  &  Lafr.  Syn.  Av.  p.  2. 
10.      Milvago  chimaehima.    Add:  Azara,  No.  6. 
M.  chimanyo.     Add  :  Azara,  No.  5. 
M.  leucurus.  Add:  Vultur  plancus  ?  Forst.  Descr.  Anim. 
p.  223. 
Polyborus  brasilicnsis.  Add :  Azara,  No.  4.  After  Lath, 
add  :  Forst.  Descr.  Anim.  p.  321.,  Icon.  ined.  33. 
13.  Aquila  chrysaetos.  Add  :  Gould,  B.  of  Eur.  pi.  6.  ;  Falco 
regalis  Temm. 
A.  bifasciata.  Add  :  A.  nipalensis  Hodgs.  As.  Res.  xviii. 
p.  13.  pi.      .  are  same  as  the  preceding  species,  2. 
A.  ncevia.  Add  :  Aquila  planga  Vieill. ;  A.  pomeriana 
Brehm  ;  Spizaetus  fuscus  Vieill.  Gould,  B.  of  Eur.  pi.  8. 
A.  ncevio'ides.  Those  species  marked  as  5.  7-  and  8.  are 
synonymous. 
14.  A.  Bonellii.  Add  :  Nisaetus  niveus  Jerri.  Gould,  B.  of  Eur. 
pi.  7-  ;  Falco  ducalis  Licht.  ;  Type  of  Tolmaetus  Blyth 
(1845). 
A.  pennata.    Add  :  Gould,  B.  of  Eur.  pi.  9. 
A.  bellicota. 
A.  coroiiata.  Perhaps  these  species  more  properly  belong 
to  the  genus  Spizaetus. 
A.  malayensis.    Add  :  Aquila  malayana  Less. 
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A.  axidax.  Add:  Aquila  cuneicaudata  Brehm,  Isis,  1845. 
p.  356.,  Gould,  B.  of  Austr.  i.  pi.  1. 
Spizaetus  ornatus.  Add:  Azara,  No.  23. ;  Aquila  urutau- 
rana  Dum. 
S.  tyrannus.    Type  of  Ptenura  Kaup  (1845). 
S.  fuscus,  &c,  are  synonymous  with  Aquila  neevia. 
S.  occipitalis.    Type  of  Lophoaetus  Kaup  (1847). 
S.  albescens  is  the  same  as  Aquila  coronata. 
S.  atricapillus.    Add  :  Buteo  melanoleucus  Vieill.  Gal.  des 
Ois.  t.  14. 
S.  limnaetos.  Read  :  S.  cirrhatus  (Gmel.)  Kaup.  —  Falco 
limnaetos,  &c.  The  species  8,  9,  10.  are  now  considered  to  be 
the  same.  Examine  Spizaetus  orientalis  and  S.  lanceolatus 
Temm.  <Sf  Schleg.  Faun.  Jap.  t.  3.  7. 
S.  hastatus.    Add  :  Spizaetus  punctatus  Jerd. 
15.  Morphnus  urubitinga.  Add:  Falco  longipes  ///.,  Spizaetus 
ater,  S.  maculatus,  and  S.  niger  Vieill.  are  considered  to  be  the 
same  species,    Azara,  No.  17>  18.  20. 
M.  buson.  Read  :  M.  cequinoctialis  (Gmel.) — F.  buson  Shaw, 
&c.   Add  :  Azara,  No.  14. ;  Aquila  urubitinga  Spix,  Av.  Bras, 
t.  1.  ?  ;  Type  of  Buteogallus  Less.  (1831).    This  species  more 
properly  forms  part  of  the  genus  Buteo. 
To  this  genus  add  the  following  species : 
M.  mexicanus,  Dubus,  Bull.  Acad.  Roy.  Brux.,  also  Rev. 
Zool.  1848.  p.  239. 
M.  meridionalis  (Lath.).  —  Falco  rutilans  Licht.;  Aquila 
buson  Spix  ;  Circus  rufulus  Vieill.  PI.  col.  25. 
M.  nigricollis  (Lath.).  —  Aquila  milvoides  Spix,  Av.  Bras, 
t.  1.  d. ;  Falco  busarellus  Baud.  Levaill.  Ois.  d'Afr.  t.  20.  ;  F. 
melanobronchos  Shaw  ;  Circus  leucocephalus  Vieill.  Azara,  No. 
13. 
Cachinna  proves  to  be  only  a  synonyme  of  Herpetotheres 
Vieill.  (1818).  Therefore  the  latter  should  be  employed,  and 
the  species  will  stand  as  H.  cachinnans  (Linn.)  Vieill.  &c. 
Add  :  Azara,  No.  15. 
16.  Circaetus  gallicus.    Add  :  Gould,  B.  of  Eur.  pi.  13. 
C.  cinereus.  Add  :  Falco  circaetus  Temm.  ;  Circus  fune- 
reus  Riipp.  Fauna  Abyss,  t.  14. 
C.  coronatus.    Add  :  Azara,  No.  7.  ;  Asturina  Azara?  Kaup. 
C.  solitarius.    To  Fauna  Peruv.  add  t.  2. 
C.  undulatus.    Read:  C.  cheela  (Gmel.). — Haematornis 
undulatus  Vigors,  &c. 
Subjoin  as  a  species  : 
C.  Isidori  (O.  Des  Murs),  Rev.  Zool.  1845.  p.  175. 
17.  Pandion  leucocephalus.    Add:  Pandion  Gouldii  Kaup. 
Haliaetus  pelagicus.    Add  :  Fauna  Japonica,  t.  4. ;  Falco 
imperator  Kittl. 
