the Volcano of Apo and its Vicinity. 475 



characters attributed to this form by Major M earns : it 

 appears to be a fairly well-marked subspecies. 



18. Hyloterpe apoensis. 



Hyluterpe apoensis Mearns, Pr. Biol. Soc. Washington, 

 xviii. p. 86 (1905) ; McGregor & Worcester, p. 93. 



a-c. $ ? • Mt. Apo, 8000 ft., Feb., March. Nos. 173, 

 190, 224. 



d. S • Piso, May. No. 432. 



"Iris reddish-brown or dark brown; bill black; feet pale 

 grey or bluish-grey, nails pink." 



The type of H. philippinensis Walden [cf. Ann. & 

 Mag. N. H. (4) x. p. 252 (1872)] was a male procured 

 by Dr. A. B. Meyer in Luzon. Additional examples of 

 this species were obtained by Whitehead on Mt. Arajat, 

 Central Luzon, and in the Province of Albay, in the south- 

 east of that island, in 1893-1894 [cf. 'Ibis,' 1894, p. 409, 

 and 1895, p. 254]. 



In 1896 the British Museum acquired the Steere Collec- 

 tion, which included a series of specimens of Hyloterpe from 

 Samar and Basilan, while the Tweeddale Collection con- 

 tained two examples from Dinagat, collected by A. H. Everett. 

 All these birds differ constantly from the Luzon specimens in 

 having the mantle and back olive-green instead of olive- 

 brown, and very closely resemble the birds from Mt. Apo 

 and Piso, S.E. Mindanao, which have recently been described 

 as H. apoensis. The only difference between the latter and 

 the birds from Samar &c. appears to be that, as a rule, the 

 crown of the head is rather browner in the Samar birds, and 

 the ear-coverts are of a more rufous tint. These differences, 

 however, are not always constant, for one female specimen 

 in the Steere Collection, from Catbalogan in Samar, has the 

 crown of the head as dark as in the Mindanao birds, and the 

 ear-coverts are but slightly more rufous. Under these cir- 

 cumstances I prefer to include the specimens from Samar, 

 Leyte, Dinagat, and Basilan with those from Mt. Apo, 

 Mindanao, under the title of H. apoensis. 



The male obtained by Mr. Goodfellow on Mt. Apo at 



