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The geographical distribution of animals, with a study of the relations ...

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chap, xiii.] THE AUSTRALIAN REGION. 429Australian origin, <strong>the</strong> remainder being common toboth regions.This shows a preponderant recent immigration from <strong>the</strong> Westand North, which is not to be wondered at when we look at <strong>the</strong>long coast line <strong>of</strong> Java, Borneo, and <strong>the</strong> Philippine islands, <strong>with</strong>an abundant and varied bird population, on <strong>the</strong> one side, and<strong>the</strong> small scattered islands <strong>of</strong> <strong>the</strong> Moluccas, <strong>with</strong> a comparativelyscanty bird-fauna, on <strong>the</strong> o<strong>the</strong>r.But, adopting <strong>the</strong> method here usually followed, let us lookat <strong>the</strong> <strong>relations</strong> <strong>of</strong> <strong>the</strong> genera found in Celebes, omitting for<strong>the</strong> present those which are peculiar to it. I divide <strong>the</strong>se generainto two series :—those which are found in Borneo or Java butnot in <strong>the</strong> Moluccas, and those which inhabit <strong>the</strong> Moluccas andnot Borneo or Java; <strong>the</strong>se being <strong>the</strong> respective sources fromwhich, primd facie, <strong>the</strong> species <strong>of</strong> <strong>the</strong>se genera must have beenderived. Genera which range widely into both <strong>the</strong>se districtsare rejected, as teaching us nothing <strong>of</strong> <strong>the</strong> origin <strong>of</strong> <strong>the</strong> Celebesianfauna. In a few cases, sub-genera which show a decidedeastern or western origin, are given.Genera derived from Borneo and Java.1. Geocichla. 9. Nectarophila. 17. Hydrocissa.2. Pratincola (sp.) 10. Anthreptes (sp.) 18. -Cranorrhinus.3. Trichastoma. 11. Munia (sp.) 19. Lyncornis.4. Oriolus (sp.) 12. Acrido<strong>the</strong>res. 20. Treron (sp.)5. Cyornis 13. Yuugipicus. 21. Gallus (sp.)6. Hypothymis. 14. Mulleripicus. 22. Spilornis.7. Hylocharis. 15. Rhamphococcyx. 23. Butastur.8. iEthopyga. 16. Hierococcyx. 24. Pernis.Genera derived from <strong>the</strong> Moluccas or Timor.1. Graucalus (sp.) 6. Tanygnathus. 11. Myristicivora (s. g.)2. Chalcostetha. 7. Trichoglossus. 12. Ducula (s. g.)3. Myzoraela. 8. Scythrops (sp.) 13. Zoncenas (s. g.)4. Munia (sp.) 9. Turaccena, 14. Lamproteron (s. g.)5. Cacatua (sp.) 10. Reinwardtcenas (sp.) 15. Megapodius.<strong>The</strong>se tables show a decided preponderance <strong>of</strong> Orientalover Australian forms. But we must remember that <strong>the</strong> immediatelyadjacent lands from whence <strong>the</strong> supply was derived, is

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