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Show 1873.] LORD WALDEN ON PHILIPPINE BIRDS. 525 Number of Number Families. Species. peculiar. Sturnidae 4 2 Fringillidee 1 0 Ploceidae 4 3 Treronidae 10 8 Columbidae 4 3 Gouridae 4 1 Phasianidee 1 0 Tetraonidee 2 1 Turnicidae ] 1 Rollulidce 1 I Megapodiidae 1 0 Charadriidee 8 0 Glareolidee 1 0 Gallinulidee 4 1 Rallidee 8 2 Parridae , 1 0 Scolopacidce 9 1 Ardeidce 11 1 Anatidae 4 2 Procellariidee 1 0 Laridee 5 0 Podicipidae 1 1 Pelecanidee 6 0 Plotidce 1 0 " By the subjoined table, showing the geographical distributions all the known Philippine species, it will be seen that 11 of the genera are peculiar, namely Pseudoptynx, Dasylophus, Lepiclo-grammus, Penelopides, Pseudolalage, Zeocephus, Rhabdornis, Gymnops, Phapitreron, Ptilocolpa, and Amaurornis. " It will be further observed that the precise habitat of 54 Philippine birds remains still unrecorded, and that out of the total number of Philippine species 85 are recorded from Luzon alone. Of the 76 species known to inhabit other islands of the archipelago, 49 possess also a Luzon habitat. If we assume, which we may fairly do, that the 54 species classed under the general term of Philippine in the table are nearly all, if not all, inhabitants of Luzon, the total number of species known to inhabit that island will be 139. The number of species known to inhabit the remaining islands is given at the bottom of their respective columns, the incompleteness of our knowledge with regard to them being illustrated by the small total of 19 representing the number of authentic species in the large and important island of Mindanao, and also by the entire and enforced omissions of many other large islands. Of Mindanao, with an estimated area of 36,000 square miles, the few species we know come from the immediate neighbourhood of Zamboanga. Of Luzon, the whole of the island north of Manilla has yet to be explored. The islands of Palawan, Mindoro, Samar, Leyte, Masbale, Bohol, the |