AUDEIN.K. 
27.  A.  leucogaster  Gmel.  PI.  enl.  350  Ardca  ludoviciana  Wils. 
Amer.  Orn.  pi.  64.  f.  1. 
28.  A.  schistacea  Ehrenb.  Sym.  Phys.  A  v.  t.  6. 
29-  A.  ccerulea  Linn.  Catesb.  Carol,  pi.  76.  —  Ardea  cyanopus 
Gmel.;  Ar.  plumbea  Browh;  Ar.  cserulescens  Lath.  PI.  enl.  349-; 
Ar.  chalybea  Stcph.  Wils.  Amer.  Orn.  pi.  62.  f.  3. 
30.  ?  A.  ?  —  Ardea  ardesiaca  Less.  Omith.  p.  575. 
31.  A.  sacra  Gmel.  Ellis,  Icon.  ined.  58.  ? 
32.  A.  novae  hollandiee  Lath.  Phill.  Bot.  Bay,  pi.  p.  16'3. —  Ardea 
leucops  Wagli 
33.  A.  jugularis  Forst.  Desc.  Anim.  p.  172.,  Icon.  ined.  114.  — 
Ardea  cterulea  var.  Lath. ;  Ar.  matook  Vieill. 
34-.  A.  gnlaris  Bosc,  Act.  de  la  Soc.  d'Hist.  Nat.  i.  t.  2.  —  Ardea 
albicollis  Vieill.  Gal.  des  Ois.  t.  253. 
35.  A.  ardesiaca  Wagl.  Syst.  Av.  Ardea  sp.  20. 
36.  A.  ayami  Gmel.  PI.  enl.  859-  —  Ardea  fusca  Lath.  PI.  enl. 
858. 
37.  A.  comata  Pall.  PI.  enl.  348.  315  Ardea  castanea  et  A. 
pumila  Lepech. ;  Ar.  ralloi'des  Scop.  ;  Ar.  Marsigli,  Ar.  squaiotta^ 
Ar.  senegalensis,  et  Ar.  erythropus  Gmel. ;  Ar.  botaurulus  Schrk. ; 
At.  audax  La  Peyr. 
38.  A.  leucoptera  Bodd.  PI.  enl.  911. — Ardea  malaccensis  Gmel.; 
Ar.  speciosa  Horsf.  Zool.  Res.  pi. ;  Ar.  Grayii  Sykes,  Gray,  111. 
Ind.  Zool.  pi.  48. ;  Type  of  Ardeola  Bote  (1822). 
39.  A.  coromanda  Bodd.  —  Ardea  bubulcus  Saviy.  Desc.  d'Egypte 
Ois.  t.  8.  f.  1.,  PI.  enl.  610. ;  Ar.  coromandelensis  Knhl ;  Ar.  russata 
Temm. ;  Ar.  aequinoctialis  Mont. ;  Ar.  Veranyi  Boux ;  Ar.  affi- 
nis  Horsf. ;  Ar.  leucocephala  Cuv. ;  Ar.  flavirostris,  bicolor,  et  rufi- 
capilla  Vieill.  ;  Ar.  caboga  Penn. ;  Ar.  lucida  Bafin. 
40.  A.   ?  —  Ardea  leucoptera  Vieill. 
41.  A.  minuta  Linn.  PI.  enl.  323. —  Ardea  danubialis  et  A. 
soloniensis  Gmel.  Edwards's  Birds,  pi.  275. ;  Type  of  Ardetta  G.  B. 
Gray. 
42.  A.  exilis  Gmel.  Wils.  Amer.  Orn.  pi.  65.  f.  4.  —  Ardea 
erythromelas,  Ar.  variegata,  et  Ar.  involucris  Vieill. 
43.  A.  pusilla  Vieill.  N.  Diet.  d'Hist.  Nat.  xiv.  432.  —  Ardea 
maculata  Lath. 
44.  A.  dnnamomea  Gmel.  —  Ardea  nebtilosa  Horsf.  Gray,  111. 
Ind.  Zool.  t.  ii.  pi.  66.  f.  1. 
45.  A.  sinensis  Gmel.  —  Ardea  lepida  Horsf. 
46.  A.  nova  guinea  Gmel.  PI.  enl.  9^6.  —  Ardea  nigerrima 
Wagl. 
47.  A.  calceolata  Dubus,  Bull.  Acad.  Brull.  iv.  p.  40.  t. 
48.  A.  virescens  Linn.  Catesb.  Carol,  pi.  80.,  Wils.  Amer.  Orn. 
pi.  6l.  f.  1.  —  Ardea  chloroptera  Bodd.  ;  Ar.  ludoviciana,  PI.  enl. 
909.  ;  Ar.  torquata  Mill.  Illustr.  pi.  60.  ;  Ar.  virgata  Gmel.  ; 
Cancroma  maculata  Bodd.  Pi.  enl.  912. 
49.  A.  grisea  Bodd.  PI.  enl.  908.  —  Ardea  scapularis,  ///.  ; 
Ar.  cyanura  et  Ar.  fuscicollis  Vieill.  Azara,  No.  358,  359- 
50.  A.  javanica  Horsf.  Linn.  Trans,  xiii.  p.  190. 
51.  A.  thalassina  Swains.  Two  Cent,  and  a  Quart,  p.  333. 
52.  A.  Sturmii  Wagl.  Syst.  Av.  Ardea  sp.  37- — Egietta  plumbea 
Swains. 
53.  A.  gutturalis  Smith,  Rep.  of  Exped.  App.  p.  57-,  HI-  Z-vol.  S. 
Afr.  Birds,  pi.  19. 
54.  A.favicollis  Lath.  Gray,  111.  Ind.  Zool.  pt.  ii.  pi.  66.  f.  2. 
Gould,  B.  of  Austr.  pi.      . —  Ardea  nigra  Vieill. 
55.  A.  chalybea  Vieill  Cancrophagus  brasiliensis  Briss. 
56.  A.  sumatrana  Raffl.  Linn.  Trans,  xiii.  p.  325. 
57-  A.  melanocephala  Raffl.  Linn.  Trans,  xiii.  p.  326. 
58.  A.  picta  Raffl.  Linn.  Trans,  xiii.  p.  326. 
59.  A.  asha  Sykes,  Proc.  Z.  S.  1832.  p.  157. 
60.  A.  rectirostris  Gould,  Proc.  Z.  S.  1843.  p.  22. 
61.  A.  Lessonii  Wagl.  Isis,  1831.  p.  521. 
62.  A.  ohula  Mol. 
Ttgrisoma  Swains* 
Bill  like  those  of  the  species  of  Ardea,  but  the  Wings  moderate,  with  the  third  and  fourth  quills 
equal  and  longest.  Tail  short  and  even.  Tarsi  longer  than  the  middle  toe,  rather  slender,  and 
covered  with  reticulated  scales.  Toes  rather  short ;  the  lateral  toes  equal,  the  outer  slightly  united  at 
the  base;  the  hind  toe  long;  the  claws  rather  short,  curved,  and  acute. 
The  birds  that  compose  this  division  are  inhabitants  of  South  America ;  they  are  generally  seen  on  the  banks  of 
rivers  and  swamps,  hiding  themselves  among  the  reeds  if  alarmed.  It  is  on  the  ground,  among  the  reeds,  that  the  nest 
is  formed.    The  eggs  are  usually  seven  or  eight  in  number. 
1.  T.  brasiliense  (Linn.)  Brown,  111.  pi.  34.  —  Ardea  lineata 
Bodd.  PI.  enl.  860.  ;  Ar.  Soco  Vieill.  ;  Ar.  fasciata  Such. 
2.  T.  tigrinum  Gmel.  PI.  enl.  790.,  Shaw,  Nat.  Misc.  pi.  621. 
—  Ardea  marmorata  Vieill.  Azara,  No.  353. ;  Ar.  flava  Gmel. 
*  It  was  in  1827  that  Mr.  Swainson  established  this  genus. 
