1S77.] 



THE ISLAND OF LUZON. 



527 



to one species. In dimensions examples vary considerably ; but intermediate links occur uniting 

 the smaller with the larger races. In markings and colouring there is little difference, and the 

 proportionate length of the tertiaries to the first primary is very variable in birds even from the 

 same locality. The species described by Mr. Blyth (Ibis, 18G7, p. 164, no. 849) as ^. pUlip- 

 pensis, vera, is JE. peronii (Temm.). 



Dimensions. 



P.Z.S.1S77 

 p. 702. 



76. Gallinula chloeopus (169). 



[Monte Alban. d : iris bright blood-red ; bill bright greenish-yellow ; legs and feet grass- 

 green.] 



77. Amaueoenis olivacea (176). 



[Monte Alban. a, d : iris bright blood-red ; bill dark green ; feet and legs yellow-brown. 

 b, 2 : iris bright blood-red ; bill light green ; legs and feet light brown.] 



78. Hypotjenidia toequata (177). 



[Monte Alban. a, 6 : iris bright blood-red ; bill black ; feet and legs brown, b, 2 : iris 

 bright Indian-red ; bill black ; legs sepia-brown, c, $ : iris bright red ; bill black ; legs very 

 dark lead-grey.] 



The sexes do not differ in their dimensions or plumage. The pectoral band appears when 

 the bird is reaching maturity. The black-barred pectoral feathers become first suffused with 

 olive-green or with rufous, the black and white bands showing through. These bars then become 

 obliterated and the feathers become uniform olive-green, dashed with dark rufous. Ultimately 

 the pectoral band becomes uniform chocolate-brown. 



79. Htpot^nidia philippensis (178). 



[Monte Alban. d : iris Indian red ; bill warm brown ; legs, feet, claws light greyish-brown. 

 February.] 



The specimens sent by Mr. Everett, three males, are typical. In all, the black bands of the 

 breast and abdomen are not very decidedly pronounced, though well marked on the flanks. In 

 two the pectoral band is just indicated by the tips of some of the feathers being tinged with pale 

 rusty fulvous. In the third the white bands are coloured with rusty fulvous, but the black bauds 



3t2 



