16, 4 McGregor: Some Features of the Philippine Ornis 417 
in the Palawan group; Centropus viridis, also found on Cagayancillo, is 
strictly non-Palawan. We found only eleven species of birds on Cresta 
de Gallo and none of them, except Zosterops nigrorum, has a restricted 
range in the Philippines. ] 
The total number of species of birds known from the Philippine 
Islands is 760, distributed in 292 genera; 477 species and 26 
genera are endemic. These numbers include the shore and 
water birds, most of which are nonendemic both as to genera 
and species. 
If the land birds alone be considered the numbers are approxi- 
mately as follows: 
Genera , 209 
Species 639 
Endemic genera 26 
Endemic species 469 
12+ 
Generic endemism (per cent) 
Specific endemism (per cent) 73+ 
These numbers are given for what they are worth; to be of 
real interest they should be compared with similar numbers for 
Borneo, Celebes, Papua, etc., but such numbers are not at hand. 
The endemic species of Philippine land birds and their dis- 
tribution by groups of islands are given in Table 2. The num- 
bers in the box heads correspond with the numbers on the map, 
Plate 1, and with the paragraphs on pages 415 and 416. 
TABLE 2.—Showing the distribution of endemic species of Philippine land 
birds by groups of islands. 
[An asterisk indicates an endemic genus.] 
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