﻿NO. 
  1134. 
  PHILirriNE 
  ORXITHOLOGY— 
  WORCESTER 
  AND 
  BOURNS. 
  573 
  

  

  19. 
  Calornis 
  panaiiensls. 
  28. 
  Lauius 
  lucionensis. 
  

  

  20. 
  Oriolus 
  chinensis. 
  29. 
  RMpidura 
  nirjritornuis. 
  

  

  21. 
  Munia 
  jagori. 
  *30. 
  Zeoccphits 
  cyanescens. 
  

  

  22. 
  Croloncha 
  evcretli. 
  31. 
  Calivicapa 
  helianthea. 
  

  

  23. 
  Adhopijga 
  shelh'yi. 
  *32. 
  Siphia 
  lemprieri. 
  

  

  24. 
  Ciiini/ris 
  sperata. 
  33. 
  Pi<<a 
  erylhrogaslra. 
  

  

  25. 
  Cinnyris 
  aurora. 
  *34. 
  Pitta 
  prophu/na. 
  

  

  26. 
  Dicaeum 
  pyymaeum. 
  3.5. 
  Pt</a 
  atricapilla. 
  

   "27. 
  Fnrus 
  amabilis. 
  

  

  There 
  remain 
  only 
  the 
  birds 
  of 
  Table 
  III, 
  which 
  shows 
  the 
  Palawan 
  

   species 
  identical 
  with, 
  or 
  allied 
  to, 
  species 
  inhabiting- 
  Borneo 
  or 
  western 
  

   Indo-Malaya, 
  bnt 
  not 
  found 
  in 
  the 
  Philippines, 
  except 
  as 
  migrants 
  or 
  

   stragglers. 
  Species 
  peculiar 
  to 
  the 
  Palawan 
  group 
  are 
  distinguished 
  

   by 
  the 
  prefix 
  of 
  an 
  *. 
  

  

  ^1. 
  I'olyplectron 
  napohonis. 
  19. 
  DendropMla 
  frontalis. 
  

  

  2. 
  Tiirtur 
  tiyriniis. 
  20. 
  Chalcostefha 
  insiynis. 
  

  

  3. 
  Sjnlornis 
  davisoni. 
  21. 
  Anthotlireptes 
  malaccensis. 
  

  

  4. 
  Ninox 
  scutulata. 
  *22. 
  Prionochilus 
  johaunae. 
  

   *5. 
  Syrnium 
  w'hiteheadi. 
  23. 
  Turdirius 
  rufifrons. 
  

  

  6. 
  Batrachostomusjavensis. 
  *24. 
  Mixornis 
  woodi. 
  

  

  7. 
  Batrachostomus 
  affniis. 
  *25. 
  Anuro2}sis 
  ciuereiceps. 
  

   *8. 
  Gymnolaemus 
  marchei. 
  *26. 
  Aegithina 
  viridis. 
  

  

  9. 
  Caprimulgiis 
  macrurus. 
  27. 
  Micropus 
  melauocephalus. 
  

  

  10. 
  CaprimuJgus 
  jotala. 
  *28. 
  Criniger 
  frater. 
  

  

  11. 
  Suruiculus 
  luguhrif. 
  *29. 
  Criniger 
  palawanensis. 
  

  

  12. 
  Eudyuamishonorata, 
  *30. 
  Pycnonotus 
  einereifrona. 
  

   *13. 
  Dryococcyx 
  harringioni. 
  31. 
  Artamides 
  smnatrcnsis. 
  

   *14. 
  T(</a 
  everetti. 
  32. 
  Pericrucotuti 
  igueus 
  

  

  *15. 
  Hemilophus 
  pulveruUutus 
  *33. 
  CryptoJopJia 
  sanUiopygia. 
  

  

  *16. 
  Mainai 
  us 
  palawanensis. 
  *34. 
  Sipliiahanyumas. 
  

  

  *17. 
  Buchanga 
  palawanensis. 
  *35. 
  Siphia 
  erithaeua. 
  

   18. 
  Oriolus 
  xanfhonotus. 
  

  

  We 
  have 
  then 
  a 
  total 
  of 
  194 
  species 
  of 
  birds 
  known 
  from 
  the 
  group. 
  

   Of 
  these 
  124 
  do 
  not 
  yield 
  any 
  satisfactory 
  evidence. 
  Of 
  the 
  remaining 
  

   seventy 
  35 
  are 
  related 
  to 
  Bornean 
  and 
  35 
  to 
  Philippine 
  species. 
  This 
  

   at 
  first 
  sight 
  might 
  not 
  seem 
  very 
  conclusive, 
  but 
  if 
  we 
  examine 
  the 
  

   species 
  of 
  Table 
  III 
  we 
  shall 
  note 
  that 
  of 
  the 
  35 
  genera 
  included 
  15 
  

   are 
  without 
  known 
  representatives 
  in 
  the 
  Philippines. 
  We 
  shall 
  note 
  

   further 
  that 
  the 
  two 
  genera 
  peculiar 
  to 
  the 
  group, 
  Gynmolaemus 
  and 
  

   Dryococcyx, 
  are 
  allied 
  to 
  genera 
  belonging 
  to 
  the 
  tyi^ical 
  Indo-Malayan 
  

   subarea. 
  Last 
  of 
  all 
  we 
  shall 
  note 
  that 
  the 
  percentage 
  of 
  peculiar 
  

   species 
  is 
  much 
  higher 
  among 
  the 
  Bornean 
  than 
  among 
  the 
  Philippine 
  

   species, 
  there 
  being 
  18 
  of 
  the 
  former 
  against 
  7 
  of 
  the 
  latter, 
  

  

  Everett's 
  final 
  conclusion 
  is 
  as 
  follows: 
  "Not 
  only 
  has 
  a 
  larger 
  

   proportion 
  of 
  the 
  existing 
  bird 
  population 
  entered 
  the 
  group 
  from 
  

   the 
  Bornean 
  side 
  than 
  has 
  invaded 
  it 
  from 
  the 
  Philippines, 
  but 
  the 
  

   western 
  element 
  represents 
  the 
  fundamental 
  ornis, 
  since 
  it 
  exhibits 
  a 
  

   markedly 
  higher 
  degree 
  of 
  differentiation, 
  which 
  is 
  certainly 
  indicative 
  

   of 
  its 
  greater 
  antiquity 
  and 
  longer 
  isolation.'' 
  

  

  This 
  conclusion 
  seems 
  to 
  me 
  to 
  be 
  wholly 
  justified 
  by 
  the 
  facts, 
  

  

  