﻿282 
  Letters, 
  Extracts, 
  Notices, 
  ^c. 
  

  

  fourth 
  part 
  of 
  his 
  '^ 
  Aves 
  Hawaiienses/ 
  Now, 
  however, 
  this 
  

   part 
  has 
  appeared, 
  and 
  I 
  observe 
  that 
  its 
  authors 
  have 
  applied 
  

   to 
  the 
  bird 
  from 
  Mauai 
  the 
  name 
  aurea, 
  Finsch 
  (nee 
  Dre- 
  

   panis 
  aurea, 
  Dole), 
  and 
  have 
  put 
  it 
  iu 
  the 
  genus 
  Himatione. 
  

   I 
  therefore 
  am 
  bound 
  to 
  justify 
  my 
  name 
  of 
  " 
  Loxops 
  

   ochracea," 
  and 
  to 
  endeavour 
  to 
  disentangle 
  the 
  confusion 
  

   which 
  surrounds 
  this 
  species. 
  

  

  Judge 
  Dole, 
  in 
  the 
  ' 
  Hawaiian 
  Almanack 
  ' 
  for 
  1879 
  (p. 
  45), 
  

   described 
  the 
  young 
  of 
  Loxops 
  coccinea 
  of 
  Hawaii 
  under 
  the 
  

   name 
  Drepaiiis 
  aurea. 
  "Next, 
  Dr. 
  Finsch, 
  in 
  'The 
  Ibis^ 
  for 
  

   1880 
  (p. 
  80), 
  described 
  a 
  bird 
  from 
  Mauai 
  as 
  Hijpoloxias 
  

   aurea, 
  and 
  identified 
  it 
  with 
  the 
  Drepanis 
  aurea 
  of 
  Dole. 
  

   Finally, 
  Dr. 
  Sharpe 
  (Cat, 
  B. 
  x. 
  p. 
  50) 
  followed 
  Dr. 
  Finsch 
  in 
  

   putting 
  the 
  bird 
  into 
  the 
  genus 
  Hypoloxias, 
  but 
  applied 
  to 
  

   it 
  the 
  older 
  generic 
  name 
  of 
  Loxops. 
  

  

  In 
  his 
  new 
  part, 
  Mr. 
  Wilson, 
  in 
  trying 
  to 
  unravel 
  this 
  

   confusion, 
  has 
  unfortunately 
  made 
  it 
  much 
  worse 
  by 
  retaining 
  

   Dr. 
  Finsch's 
  name 
  aurea 
  and 
  putting 
  the 
  bird 
  into 
  the 
  genus 
  

   Himatione. 
  This 
  is 
  entirely 
  a 
  mistake, 
  because 
  the 
  bird 
  

   from 
  Mauai 
  is, 
  as 
  I 
  can 
  prove 
  by 
  my 
  very 
  large 
  series 
  of 
  

   males, 
  females, 
  and 
  young, 
  a 
  true 
  Loxops. 
  The 
  male 
  only 
  

   differs 
  from 
  the 
  male 
  of 
  Loxops 
  coccinea 
  in 
  colour, 
  and 
  the 
  

   females 
  of 
  both 
  species 
  are 
  barely 
  distinguishable. 
  

  

  Now 
  it 
  is 
  a 
  rule 
  in 
  zoological 
  nomenclature 
  that 
  a 
  name 
  

   once 
  used 
  in 
  a 
  genus, 
  even 
  if 
  only 
  a 
  synonym, 
  cannot 
  be 
  

   used 
  a 
  second 
  time 
  ; 
  therefore 
  I 
  maintain 
  that 
  the 
  term 
  

   "aurea," 
  having 
  been 
  used 
  by 
  Dole 
  for 
  Loxops 
  coccinea 
  of 
  

   Hawaii, 
  is 
  inadmissible 
  for 
  the 
  Mauai 
  bird, 
  which 
  must 
  

   stand 
  as 
  follows 
  : 
  — 
  

  

  Loxops 
  ochracea, 
  Rothsch. 
  Ibis, 
  1893, 
  p. 
  112. 
  

   Hypoloxias 
  aurea, 
  Finsch, 
  Ibis, 
  1880, 
  p. 
  80. 
  

   Loxops 
  aurea, 
  Sharpe, 
  Cat. 
  B. 
  x. 
  p. 
  50. 
  

   Himatione 
  aurea, 
  Wilson, 
  Aves 
  Haw. 
  pt. 
  iv. 
  1893. 
  

  

  I 
  am. 
  Sir, 
  

  

  Yours 
  &c., 
  

   TringPark, 
  W. 
  KoTHSCUlLD. 
  

  

  Marcli 
  6th, 
  1893. 
  

  

  