﻿534 
  Mr. 
  II. 
  O. 
  Forbes 
  on 
  the 
  Birds 
  

  

  of 
  P. 
  caranculatus 
  , 
  and 
  in 
  the 
  second 
  nnder 
  P. 
  imperialis. 
  

   P. 
  imperialis 
  was 
  first 
  described 
  by 
  Captain 
  King 
  on 
  his 
  

   return 
  from 
  the 
  Straits 
  of 
  Magellan^ 
  where 
  he 
  discovered 
  

   the 
  species. 
  His 
  account 
  specifies 
  that 
  his 
  bird 
  was 
  a 
  

   crested 
  Cormoraut, 
  with 
  the 
  hind 
  neck 
  and 
  the 
  upper 
  surface 
  

   of 
  the 
  body 
  deep 
  purple; 
  wings 
  and 
  scapulars 
  greenish 
  black 
  ; 
  

   remiges 
  and 
  rectrices 
  (of 
  which 
  there 
  were 
  12) 
  fuscous 
  

   black 
  ; 
  the 
  underside 
  of 
  the 
  body^ 
  the 
  alar 
  bars^ 
  and 
  a 
  spot 
  in 
  

   the 
  middle 
  of 
  the 
  back 
  greyish 
  white 
  ; 
  the 
  beak 
  black 
  and 
  the 
  

   feet 
  yellow. 
  Now 
  this 
  description 
  agrees, 
  with 
  the 
  exception 
  

   of 
  the 
  crestj 
  with 
  the 
  specimens 
  more 
  recently 
  brought 
  from 
  

   the 
  Straits 
  of 
  Magellan, 
  now 
  in 
  the 
  British 
  Museum. 
  Of 
  

   these, 
  one 
  was 
  brought 
  back 
  by 
  the 
  ' 
  Challenger/ 
  and 
  was 
  

   figured 
  as 
  P. 
  imperialis 
  by 
  Mr. 
  Sclater 
  in 
  his 
  Report 
  on 
  the 
  

   ' 
  Challenger 
  ' 
  Birds, 
  p. 
  120, 
  pi. 
  xxv. 
  No 
  one 
  who 
  compares 
  

   the 
  figures 
  I 
  have 
  referred 
  to 
  can 
  for 
  a 
  moment 
  doubt 
  their 
  

   distinctness. 
  The 
  figure 
  in 
  the 
  second 
  edition 
  of 
  Sir 
  "Walter 
  

   Buller's 
  ' 
  History 
  ' 
  clearly 
  shows 
  how 
  inefficient 
  chromo- 
  

   lithography 
  is 
  to 
  represent 
  the 
  coloration 
  of 
  certain 
  species 
  

   of 
  birds. 
  The 
  figures 
  in 
  both 
  editions 
  have 
  been 
  prepared, 
  

   it 
  appears, 
  from 
  the 
  same 
  specimen, 
  and 
  yet 
  they 
  are 
  scarcely 
  

   recognizable 
  as 
  of 
  the 
  same 
  bird. 
  The 
  crest 
  in 
  the 
  figure 
  of 
  

   the 
  first 
  edition 
  is 
  steel-blue 
  with 
  a 
  slight 
  tinge 
  of 
  green, 
  and 
  

   the 
  neck 
  and 
  back 
  steel-blue, 
  whereas 
  in 
  the 
  chromolitho- 
  

   graphed 
  plate 
  in 
  the 
  second 
  edition 
  there 
  is 
  no 
  sign 
  of 
  blue, 
  

   only 
  bright 
  green 
  ; 
  yet 
  the 
  description 
  states 
  that 
  these 
  parts 
  

   are 
  *' 
  steel-blue, 
  with 
  a 
  beautiful 
  gloss.'' 
  It 
  will 
  be 
  apparent 
  

   on 
  comparing 
  Mr. 
  Sclater's 
  figure 
  of 
  P. 
  imperialis 
  with 
  the 
  

   better 
  of 
  Sir 
  Walter 
  Buller's 
  two 
  figures, 
  that 
  is 
  of 
  P. 
  carun- 
  

   culatus 
  in 
  the 
  first 
  edition 
  of 
  his 
  book 
  (which 
  is= 
  P. 
  imperialis 
  

   of 
  the 
  second 
  edition), 
  that 
  the 
  dark 
  feathering 
  in 
  the 
  former 
  

   commences 
  opposite 
  or 
  just 
  under 
  the 
  eye, 
  and 
  then 
  con- 
  

   tinues 
  backward 
  to 
  the 
  hind 
  neck, 
  while 
  in 
  the 
  latter 
  it 
  

   conamences 
  at 
  the 
  lower 
  edge 
  of 
  the 
  mandibles, 
  and 
  then 
  

   retreats 
  toward 
  the 
  hind 
  neck, 
  covering, 
  however, 
  much 
  

   more 
  of 
  the 
  sides 
  of 
  the 
  neck 
  than 
  in 
  P. 
  imperialis. 
  The 
  

   naked 
  skin 
  in 
  front 
  of 
  and 
  round 
  the 
  eye 
  in 
  the 
  two 
  species 
  

   is 
  also 
  totally 
  distinct, 
  being 
  bright 
  orange 
  in 
  the 
  Chatham- 
  

  

  