﻿592 
  PROCEEDINGS 
  OF 
  THE 
  NAITONAL 
  MUSEUM. 
  

  

  no 
  small 
  degree 
  to 
  the 
  fact 
  that 
  the 
  highlands 
  of 
  the 
  more 
  southern 
  

   islands 
  are 
  still 
  quite 
  unknown, 
  it 
  seems 
  probable 
  that 
  further 
  work 
  

   will 
  tend 
  to 
  decrease 
  rather 
  than 
  to 
  increase 
  them. 
  

  

  It 
  is 
  perhaps 
  worth 
  while 
  to 
  note 
  in 
  passing 
  that 
  Samar 
  seems 
  to 
  be 
  

   the 
  northern 
  limit 
  in 
  the 
  Philippines 
  of 
  the 
  genera 
  Macronus, 
  Ptilo- 
  

   cichla, 
  and 
  iiarco^jhanopti. 
  Some 
  of 
  these 
  genera 
  may 
  yet 
  be 
  discovered 
  

   in 
  Luzon, 
  but 
  it 
  seems 
  to 
  me 
  improbable 
  that 
  they 
  should 
  have 
  been 
  

   overlooked 
  by 
  Whitehead, 
  who 
  spent 
  upward 
  of 
  two 
  years 
  in 
  the 
  island. 
  

  

  One 
  Samar- 
  Ley 
  te 
  form 
  has 
  always 
  puzzled 
  me. 
  Why 
  should 
  Tliri- 
  

   ponax 
  javensis 
  give 
  way 
  in 
  Samar 
  and 
  Ley 
  te 
  to 
  so 
  well-marked 
  a 
  species 
  

   as 
  Thriponax 
  pectoraUs., 
  and 
  then 
  reappear 
  in 
  Luzon? 
  

  

  THE 
  RELATIONSHIP 
  BETWEEN 
  SAMAK, 
  LEYTE, 
  AND 
  iMINDANAO. 
  

  

  With 
  the 
  single 
  exception 
  of 
  Pericrocotus 
  leytenms 
  every 
  one 
  of 
  the 
  

   l)eculiar 
  Samar-Leyte 
  species 
  is 
  known 
  to 
  have 
  an 
  ally 
  in 
  Mindanao, 
  

   and 
  most 
  of 
  them 
  have 
  very 
  close 
  allies. 
  I 
  believe 
  that 
  Pericrocottis, 
  

   which 
  reappears 
  in 
  Sulu, 
  will 
  eventually 
  be 
  found 
  in 
  Mindanao 
  and 
  the 
  

   other 
  intervening 
  islands. 
  

  

  A 
  still 
  further 
  indication 
  of 
  the 
  ch)seness 
  of 
  the 
  relationship 
  between 
  

   the 
  birds 
  of 
  Samar, 
  Leyte, 
  and 
  Mindanao 
  is 
  found 
  in 
  the 
  following- 
  

   species 
  which 
  are 
  common 
  to 
  the 
  three 
  islands, 
  but 
  are 
  lacking 
  in 
  the 
  

   central 
  and 
  western 
  islands. 
  Species 
  that 
  range 
  northward 
  to 
  Luzon 
  

   or 
  Mindoro 
  are 
  prefaced 
  by 
  an 
  *, 
  those 
  that 
  range 
  westward 
  to 
  Cebu 
  

   Bohol, 
  or 
  Si(]uijor 
  by 
  a 
  t: 
  

  

  "1. 
  Phabotreron 
  ametliystina. 
  * 
  16. 
  Anthothreptes 
  griseigularis. 
  

  

  t2. 
  Phabotreroti 
  hreriroiitris. 
  17. 
  Dicaeiim 
  cinereigulare. 
  

  

  3. 
  Phlogomas 
  crinigera. 
  18. 
  Dicaeum 
  everetti. 
  

  

  4. 
  Scops 
  ererctti. 
  19. 
  Prionochilus 
  oJhacens. 
  

   15. 
  Mia-ohierax 
  meridionalis. 
  t*20. 
  Hyloierpe 
  phUippinensis. 
  

  

  6. 
  Pithecophaga 
  jefferyi. 
  21. 
  Orthototu 
  us 
  frou 
  talis. 
  

  

  * 
  7. 
  Harpnrtcs 
  aniens. 
  22. 
  Zosteromis 
  capi 
  talis 
  {J^eyte 
  onlj). 
  

  

  8. 
  Siir7ii(iilu8 
  vehitinns. 
  23. 
  Macronus 
  mindancnsis. 
  

  

  9. 
  Cenlropiis 
  melanops. 
  24. 
  lole 
  everetti. 
  

  

  10. 
  MicrostictiisfiiUfiinosiis. 
  *25. 
  Poliolophits 
  tirostictus. 
  

  

  11. 
  Dicruriis 
  siriatus. 
  26. 
  Artamides 
  kochil. 
  

  

  12. 
  Eudrepanis 
  pulcherrlma. 
  *27. 
  Lalage 
  minor. 
  

  

  13. 
  Aethopijga 
  bella. 
  28. 
  Pitta 
  steerii. 
  

  

  14. 
  Arachnothera 
  flammifera. 
  29. 
  Bhlnomyiasrnjicaiida. 
  

  

  15. 
  Arachnothera 
  philipphnnsis. 
  

  

  The 
  relationship 
  between 
  the 
  "Eastern 
  Philippines" 
  (Samar 
  and 
  

   Leyte) 
  and 
  Mindanao 
  is, 
  in 
  my 
  judgment, 
  closer 
  than 
  that 
  between 
  any 
  

   other 
  two 
  areas 
  which 
  Steere 
  has 
  separated. 
  I- 
  am 
  tempted 
  to 
  say 
  that 
  

   the 
  resemblances 
  outweigh 
  the 
  differences. 
  Remembering 
  that 
  4 
  spe- 
  

   cies 
  of 
  Centropus, 
  4 
  of 
  Carpophaga, 
  2 
  of 
  Cettia, 
  2 
  of 
  Ninox, 
  6 
  of 
  Cinnyris, 
  

   6 
  of 
  Dicaeum, 
  4 
  of 
  Halcyon, 
  2 
  of 
  Hierococcyx, 
  2 
  of 
  Hyloterpc, 
  2 
  of 
  Lyn- 
  

   cornis,3 
  of 
  Orioius, 
  2 
  of 
  Orthotomus, 
  3 
  of 
  Scops, 
  3 
  of 
  Zosterops,'3 
  of 
  

   Zosterornis, 
  2 
  oi 
  Mnscicapula, 
  and 
  3 
  of 
  Siphia 
  have 
  been 
  found 
  in 
  Luzon 
  

   alone, 
  one 
  can 
  not 
  but 
  wonder 
  whether, 
  if 
  there 
  were 
  actual 
  land 
  con- 
  

  

  